Nils Christopher Gerhardt

Fakultät für Elektrotechnik, Informatik und Mathematik
nils.gerhardt@uni-paderborn.de
ID
115298

180 Publications

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[180]
2025 | Journal Article | LibreCat-ID: 61932
Ledentsov, Nikolay N., Nikolay Ledentsov, Vitaly A. Shchukin, Alexander N. Ledentsov, Oleg Yu. Makarov, Ilya E. Titkov, Markus Lindemann, et al. “VCSELs: Influence of Design on Performance and Data Transmission over Multi-Mode and Single-Mode Fibers.” Photonics 12, no. 10 (2025). https://doi.org/10.3390/photonics12101037.
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[179]
2025 | Journal Article | LibreCat-ID: 61931
Diiankova, Uliana, Mariusz Drong, Tobias Pusch, Rainer Michalzik, Markus Lindemann, Nils Christopher Gerhardt, and Martin R. Hofmann. “Multimode Vertical-Cavity Surface-Emitting Lasers under Spin Injection.” APL Photonics 10, no. 10 (2025). https://doi.org/10.1063/5.0286998.
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[178]
2025 | Journal Article | LibreCat-ID: 64551
Lindemann, M., M. D’Alessandro, N. Ledentsov, O. Y. Makarov, N. N. Ledentsov, A. Tibaldi, Nils Christopher Gerhardt, and M. R. Hofmann. “Laterally Coupled Vertical-Cavity Surface-Emitting Lasers with                    Tunable Resonance Width and Frequency.” Journal of Applied Physics 138, no. 5 (2025). https://doi.org/10.1063/5.0275622.
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[177]
2025 | Conference Paper | LibreCat-ID: 64293
Gerhardt, Nils Christopher, Martin R. Hofmann, Leon Zens, Jens Möller, and Vira Besaga. “Quantitative Holography for the Characterisation of Semiconductor Amplifieres and Lasers.” In Practical Holography XXXIX: Displays, Materials, and Applications, 2025. https://doi.org/10.1117/12.3041318.
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[176]
2024 | Journal Article | LibreCat-ID: 64550
Zens, Leon, Vira Besaga, Jens Möller, Nils Christopher Gerhardt, and Martin Hofmann. “Holographic Measurement of Gain and Linewidth Enhancement Factor in Semiconductor Waveguides.” Optics Express, 2024. https://doi.org/10.1364/oe.538741.
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[175]
2024 | Journal Article | LibreCat-ID: 64585
Lindemann, Markus, Nils Christopher Gerhardt, Pambiang Abel Dainone, Pierre Renucci, Alexandre Bouché, Martina Morassi, Xavier Devaux, et al. “Controlling the Helicity of Light by Electrical Magnetization Switching.” Nature 627, no. 8005 (2024): 783–88. https://doi.org/10.1038/s41586-024-07125-5.
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[174]
2024 | Journal Article | LibreCat-ID: 64549
Zens, Leon, Vira Besaga, Jens Möller, Nils Christopher Gerhardt, and Martin Hofmann. “Holographic Measurement of Gain and Linewidth Enhancement Factor in Semiconductor Waveguides.” Optics Express, 2024. https://doi.org/10.1364/oe.538741.
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[173]
2024 | Conference Paper | LibreCat-ID: 64296
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, N. N. Ledentsov, V. A. Shchukin, O. Y. Makarov, V. Zerova, M. D’alessandro, A. Tibaldi, and J. P. Turkiewicz. “Study of Electrically Excited Photon-Photon Resonances in Self-Injection-Locked Coupled-Cavity VCSELs.” In 2024 IEEE 29th International Semiconductor Laser Conference (ISLC), 2024. https://doi.org/10.1109/islc57752.2024.10717381.
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[172]
2024 | Journal Article | LibreCat-ID: 64295
Zens, Leon, Vira Besaga, Jens Möller, Nils Christopher Gerhardt, and Martin R. Hofmann. “Holographic Measurement of Gain and Linewidth Enhancement Factor in Semiconductor Waveguides.” Optics Express 33, no. 1 (2024): 34–49. https://doi.org/10.1364/oe.538741.
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[171]
2024 | Journal Article | LibreCat-ID: 59663
Dainone, Pambiang Abel, Nicholas Figueiredo Prestes, Pierre Renucci, Alexandre Bouché, Martina Morassi, Xavier Devaux, Markus Lindemann, et al. “Controlling the Helicity of Light by Electrical Magnetization Switching.” Nature 627, no. 8005 (2024): 783–88. https://doi.org/10.1038/s41586-024-07125-5.
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[170]
2022 | Journal Article | LibreCat-ID: 59668
Heermeier, Niels, Tobias Heuser, Jan Große, Natalie Jung, Arsenty Kaganskiy, Markus Lindemann, Nils Christopher Gerhardt, Martin R. Hofmann, and Stephan Reitzenstein. “Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities.” Laser & Photonics Reviews 16, no. 4 (2022). https://doi.org/10.1002/lpor.202100585.
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[169]
2020 | Journal Article | LibreCat-ID: 59686
Shi, Yuting, Lisa C. Kreuzer, Nils Christopher Gerhardt, Marianna Pantouvaki, Joris Van Campenhout, Marina Baryshnikova, Robert Langer, Dries Van Thourhout, and Bernardette Kunert. “Time-Resolved Photoluminescence Characterization of InGaAs/GaAs Nano-Ridges Monolithically Grown on 300 Mm Si Substrates.” Journal of Applied Physics 127, no. 10 (2020). https://doi.org/10.1063/1.5139636.
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[168]
2020 | Journal Article | LibreCat-ID: 59685
Žutić, Igor, Gaofeng Xu, Markus Lindemann, Paulo E. Faria Junior, Jeongsu Lee, Velimir Labinac, Kristian Stojšić, Guilherme M. Sipahi, Martin R. Hofmann, and Nils Christopher Gerhardt. “Spin-Lasers: Spintronics beyond Magnetoresistance.” Solid State Communications 316–317 (2020). https://doi.org/10.1016/j.ssc.2020.113949.
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[167]
2020 | Journal Article | LibreCat-ID: 59684
Schnitzler, Lena, Krisztian Neutsch, Falk Schellenberg, Martin R. Hofmann, and Nils Christopher Gerhardt. “Confocal Laser Scanning Holographic Microscopy of Buried Structures.” Applied Optics 60, no. 4 (2020). https://doi.org/10.1364/ao.403687.
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[166]
2019 | Conference Paper | LibreCat-ID: 64361
Neutsch, Krisztian, Martin R. Hofmann, Nils Christopher Gerhardt, Lena Schnitzler, and Marlon J. Tranelis. “Three-Dimensional Particle Localization with Common-Path Digital Holographic Microscopy.” In Practical Holography XXXIII: Displays, Materials, and Applications, 2019. https://doi.org/10.1117/12.2509448.
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[165]
2019 | Book Chapter | LibreCat-ID: 64360
Gerhardt, Nils Christopher, Igor Žutić, Jeongsu Lee, Christian Gøthgen, Junior Farla, Paulo E., Gaofeng Xu, and Guilherme M. Sipahi. “Semiconductor Spin-Lasers.” In Nanoscale Spintronics and Applications, 499–540, 2019.
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[164]
2019 | Journal Article | LibreCat-ID: 59687
Lindemann, Markus, Gaofeng Xu, Tobias Pusch, Rainer Michalzik, Martin R. Hofmann, Igor Žutić, and Nils Christopher Gerhardt. “Ultrafast Spin-Lasers.” Nature 568, no. 7751 (2019): 212–15. https://doi.org/10.1038/s41586-019-1073-y.
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[163]
2018 | Conference Paper | LibreCat-ID: 64371
Hofmann, Martin R., Marcel Lenz, Robin Krug, Nils Christopher Gerhardt, Kirsten Schmieder, Christopher Dillmann, and Hubert Welp. “Brain Tissue Analysis Using Texture Features Based on Optical Coherence Tomography Images.” In Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXII, 2018. https://doi.org/10.1117/12.2292032.
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[162]
2018 | Conference Paper | LibreCat-ID: 64372
Lenz, Marcel, Robin Krug, Nils Christopher Gerhardt, Kirsten Schmieder, Martin R. Hofmann, Christopher Dillmann, and Hubert Welp. “Classification of Brain Tissue with Optical Coherence Tomography by Employing Texture Analysis.” In Optics, Photonics, and Digital Technologies for Imaging Applications V, 2018. https://doi.org/10.1117/12.2307701.
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[161]
2018 | Conference Paper | LibreCat-ID: 64376
Hofmann, Martin R., Nils Christopher Gerhardt, Markus Finkeldey, and Lena Göring. “Digital Holography for the Investigation of Buried Structures with a Common-Path Reflection Microscope.” In Practical Holography XXXII: Displays, Materials, and Applications, 2018. https://doi.org/10.1117/12.2289524.
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[160]
2018 | Conference Paper | LibreCat-ID: 64379
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, Rainer Michalzik, and Sebastian Scherübl. “Thermally-Induced Birefringence in VCSELs - Approaching the Limits.” In Semiconductor Lasers and Laser Dynamics VIII, 2018. https://doi.org/10.1117/12.2306215.
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[159]
2018 | Conference Paper | LibreCat-ID: 64375
Lindemann, Markus, Nils Christopher Gerhardt, Martin Hofmann, Tobias Pusch, and Rainer Michalzik. “Demonstrating Ultrafast Polarization Dynamics in Spin-VCSELs.” In Vertical-Cavity Surface-Emitting Lasers XXII, 2018. https://doi.org/10.1117/12.2289560.
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[158]
2018 | Conference Paper | LibreCat-ID: 64378
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Rainer Michalzik, and Tobias Pusch. “Spin Lasers for Optical Data Communication.” In Semiconductor Lasers and Laser Dynamics VIII, 2018. https://doi.org/10.1117/12.2306464.
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[157]
2018 | Conference Paper | LibreCat-ID: 64377
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Rainer Michalzik, and Tobias Pusch. “Electrical Birefringence Tuning of VCSELs.” In Vertical-Cavity Surface-Emitting Lasers XXII, 2018. https://doi.org/10.1117/12.2295917.
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[156]
2018 | Conference Paper | LibreCat-ID: 64374
Gerhardt, Nils Christopher, Krisztian Neutsch, and Lena Göring. “Common-Path Digital Holographic Microscopy for 3D Nanoparticle Localization.” In Nanoimaging and Nanospectroscopy VI, 2018. https://doi.org/10.1117/12.2321175.
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[155]
2018 | Conference Paper | LibreCat-ID: 64380
Gerhardt, Nils Christopher, Gaofeng Xu, and Igor Žutić. “Toward Ultrafast Spin Lasers?” In APS March Meeting 2018, 2018.
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[154]
2018 | Journal Article | LibreCat-ID: 64370
Lenz, Marcel, Robin Krug, Nils Christopher Gerhardt, Kirsten Schmieder, Christopher Dillmann, Ralf Stroop, and H. Welp. “Automated Differentiation between Meningioma and Healthy Brain Tissue Based on Optical Coherence Tomography Ex Vivo Images Using Texture Features.” Journal of Biomedical Optics 23, no. 7 (2018): 071205. https://doi.org/10.1117/1.jbo.23.7.071205.
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[153]
2018 | Conference Paper | LibreCat-ID: 64369
Besaga, Vira, Nils Christopher Gerhardt, Martin R. Hofmann, and Peter P. Maksimyak. “A Direct-View Customer-Oriented Digital Holographic Camera.” In Thirteenth International Conference on Correlation Optics, 2018. https://doi.org/10.1117/12.2304923.
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[152]
2017 | Journal Article | LibreCat-ID: 64403
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. (ORCiD: 0000-0003-1265-0003) Hofmann, Tobias Pusch, Eros La Tona, and Rainer Michalzik. “Thermally Induced Birefringence Tuning of 37 GHz in VCSELs.” 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC 2017) 1 (2017): 108. https://doi.org/10.1109/cleoe-eqec.2017.8086349.
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[151]
2017 | Conference Paper | LibreCat-ID: 64402
Lenz, Marcel, Robin Krug, Alexandra Gerling, Kirsten Schmieder, Martin Hofmann, Nils Christopher Gerhardt, Christopher Dillmann, and Hubert Welp. “Spectroscopic Optical Coherence Tomography for Ex Vivo Brain Tumor Analysis.” In Advanced Biomedical and Clinical Diagnostic and Surgical Guidance Systems XV, 2017. https://doi.org/10.1117/12.2252141.
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[150]
2017 | Conference Paper | LibreCat-ID: 64399
Finkeldey, Markus, Lena Göring, Falk Schellenberg, Carsten Brenner, Nils Christopher Gerhardt, and Martin R. Hofmann. “Multimodal Backside Imaging of a Microcontroller Using Confocal Laser Scanning and Optical-Beam-Induced Current Imaging.” In Photonic Instrumentation Engineering IV, 2017. https://doi.org/10.1117/12.2250912.
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[149]
2017 | Journal Article | LibreCat-ID: 64401
Finkeldey, Markus, Falk Schellenberg, Carsten Brenner, Martin R. Hofmann, Nils Christopher Gerhardt, and Lena Göring. “Optical Metrology for the Investigation of Buried Technical Structures.” Technisches Messen 85, no. 2 (2017): 104–10. https://doi.org/10.1515/teme-2017-0096.
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[148]
2017 | Conference Paper | LibreCat-ID: 64398
Cherkashin, Maxim N., Carsten Brenner, Widodo Dwi Putro, Benjamin Döpke, Nils Christopher Gerhardt, and Martin R. Hofmann. “Linking Transducer Transfer Function with Multi-Pulse Excitation Photoacoustic Response.” In Medical Imaging 2017: Ultrasonic Imaging and Tomography, 2017. https://doi.org/10.1117/12.2254577.
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[147]
2017 | Conference Paper | LibreCat-ID: 64400
Lenz, Marcel, Nils Christopher Gerhardt, Michael Prange, Martin R. Hofmann, Cristian Mazzon, Christopher Dillmann, and Hubert Welp. “Nondestructive Evaluation of Protective Coatings for the Conservation of Industrial Monuments.” In Optics for Arts, Architecture, and Archaeology VI, 2017. https://doi.org/10.1117/12.2270170.
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[146]
2017 | Conference Paper | LibreCat-ID: 64397
Göring, Lena, Markus Finkeldey, Adamou Ad­in­da-Oug­ba, Nils Christopher Gerhardt, and Martin Hofmann. “Lensless Digital Holographic Microscope Using In-Line Configuration and Laser Diode Illumination.” In Practical Holography XXXI: Materials and Applications, 2017. https://doi.org/10.1117/12.2250927.
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[145]
2017 | Journal Article | LibreCat-ID: 64386
Lenz, Marcel, Nils Christopher Gerhardt, Martin Hofmann, Cristian Mazzon, Christopher Dillmann, Hubert Welp, and Michael Prange. “Spectral Domain Optical Coherence Tomography for Non-Destructive Testing of Protection Coatings on Metal Substrates.” Applied Sciences 7, no. 4 (2017). https://doi.org/10.3390/app7040364.
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[144]
2017 | Journal Article | LibreCat-ID: 64385
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, Rainer Michalzik, and Eros La Tona. “Monolithic Vertical-Cavity Surface-Emitting Laser with Thermally Tunable Birefringence.” Applied Physics Letters 110, no. 15 (2017). https://doi.org/10.1063/1.4980025.
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[143]
2017 | Conference Paper | LibreCat-ID: 64393
Cherkashin, Maxim N., Carsten Brenner, Widodo Dwi Putro, Benjamin Döpke, Nils Christopher Gerhardt, and Martin R. Hofmann. “Dynamics of the Photoacoustic Response of Single-Element PZT Transducers to Pulse Burst Excitation.” In Photons Plus Ultrasound: Imaging and Sensing 2017, 2017. https://doi.org/10.1117/12.2253051.
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[142]
2017 | Journal Article | LibreCat-ID: 64384
Finkeldey, Markus, Lena Göring, Carsten Brenner, Martin Hofmann, and Nils Christopher Gerhardt. “Depth-Filtering in Common-Path Digital Holographic Microscopy.” Optics Express 25, no. 16 (2017): 19398–407. https://doi.org/10.1364/oe.25.019398.
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[141]
2017 | Conference Paper | LibreCat-ID: 64388
Finkeldey, Markus, Falk Schellenberg, Nils Christopher Gerhardt, Martin Hofmann, and Lena Göring. “Backside Imaging of a Microcontroller with Common-Path Digital Holography.” In Practical Holography XXXI: Materials and Applications, 2017. https://doi.org/10.1117/12.2250903.
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[140]
2017 | Conference Paper | LibreCat-ID: 64395
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “Investigations on Polarization Oscillation Amplitudes in Spin-VCSELs.” In Vertical-Cavity Surface-Emitting Lasers XXI, 2017. https://doi.org/10.1117/12.2252490.
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[139]
2017 | Journal Article | LibreCat-ID: 64392
Finkeldey, Markus, Carsten (ORCiD: 0000-0002-8764-9261) Brenner, Nils Christopher Gerhardt, Martin R. Hofmann, and Lena Göring. “Digital Holographic Microscopy of Buried Specimen Using a Common-Path Reflective Setup.” DGaO-Proceedings 118 (2017).
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[138]
2017 | Conference Paper | LibreCat-ID: 64391
Besaga, Vira, Nils Christopher Gerhardt, Martin R. Hofmann, and Peter P. Maksimyak. “Common-Path Holographic Objective for Conventional Photographic Camera.” In Novel Optical Systems Design and Optimization XX, 2017. https://doi.org/10.1117/12.2273890.
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[137]
2017 | Conference Paper | LibreCat-ID: 64394
Lindemann, Markus, Martin R. Hofmann, Nils Christopher Gerhardt, Tobias Pusch, and Rainer Michalzik. “High-Frequency Polarization Dynamics in Spin-Lasers - Pushing the Limits.” In Spintronics X, 2017. https://doi.org/10.1117/12.2272972.
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[136]
2016 | Journal Article | LibreCat-ID: 59690
Lindemann, Markus, Tobias Pusch, Rainer Michalzik, Nils Christopher Gerhardt, and Martin R. Hofmann. “Frequency Tuning of Polarization Oscillations: Toward High-Speed Spin-Lasers.” Applied Physics Letters 108, no. 4 (2016). https://doi.org/10.1063/1.4940713.
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[135]
2016 | Preprint | LibreCat-ID: 64425
Schellenberg, Falk, Markus Finkeldey, Nils Christopher Gerhardt, Martin R. Hofmann, Amir Moradi, and Christof Paar. “Large Laser Spots and Fault Sensitivity Analysis,” 2016.
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[134]
2016 | Journal Article | LibreCat-ID: 64426
Lenz, Marcel, Robin Krug, Nils Christopher Gerhardt, Kirsten Schmieder, Martin Hofmann, Christopher Dillmann, and Hubert Welp. “Local Bi­na­ry Pat­terns for Dif­fe­ren­tia­ti­on of Brain Tis­sue Types In­op­ti­cal Co­he­rence To­mo­gra­phy Ima­ges.” Biomedical Engineering 61, no. Suppl. 1 (2016).
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[133]
2016 | Conference Paper | LibreCat-ID: 64424
Schellenberg, Falk, Markus Finkeldey, Nils Christopher Gerhardt, Martin R. Hofmann, Amir Moradi, and Christof Paar. “Large Laser Spots and Fault Sensitivity Analysis.” In 2016 IEEE International Symposium on Hardware Oriented Security and Trust (HOST 2016), 203–8, 2016. https://doi.org/10.1109/hst.2016.7495583.
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[132]
2016 | Conference Paper | LibreCat-ID: 64420
Finkeldey, Markus, Falk Schellenberg, Nils Christopher Gerhardt, Christof Paar, and Martin Hofmann. “Common-Path Depth-Filtered Digital Holography for High Resolution Imaging of Buried Semiconductor Structures.” In Practical Holography XXX: Materials and Applications, 2016. https://doi.org/10.1117/12.2212454.
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[131]
2016 | Conference Paper | LibreCat-ID: 64423
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “Influence of Birefringence Splitting on Ultrafast Polarization Oscillations in VCSELs.” In Vertical-Cavity Surface-Emitting Lasers XX, 2016. https://doi.org/10.1117/12.2212413.
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[130]
2016 | Conference Paper | LibreCat-ID: 64427
Gerhardt, Nils Christopher, Jr. Faria, Paulo E., Gaofeng Xu, Jeongsu Lee, Guilherme M. Sipahi, and Igor Žutić. “Microscopic Description of a Spin Laser.” In APS March Meeting 2016, 2016.
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[129]
2016 | Conference Paper | LibreCat-ID: 64422
Lindemann, Markus, Martin R. Hofmann, Nils Christopher Gerhardt, Tobias Pusch, and Rainer Michalzik. “Frequency Tuning of Polarization Oscillations in Spin-Polarized Vertical-Cavity Surface-Emitting Lasers.” In Semiconductor Lasers and Laser Dynamics VII, 2016. https://doi.org/10.1117/12.2229358.
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[128]
2016 | Conference Paper | LibreCat-ID: 64419
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “Birefringent Vertical Cavity Surface-Emitting Lasers - toward High-Speed Spin-Lasers.” In Semiconductor Lasers and Laser Dynamics VII, 2016. https://doi.org/10.1117/12.2229356.
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[127]
2016 | Conference Paper | LibreCat-ID: 64415
Brenner, Carsten, Lena Göring, Benjamin Döpke, Maxim N. Cherkashin, Nils Christopher Gerhardt, and Martin R. Hofmann. “Dynamics of Double-Pulse Photoacoustic Excitation.” In Photons Plus Ultrasound: Imaging and Sensing 2016, 2016. https://doi.org/10.1117/12.2213476.
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[126]
2016 | Journal Article | LibreCat-ID: 64421
Göring, Lena, Markus Finkeldey, Nils Christopher Gerhardt, and Martin R. Hofmann. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen.” Adaptive Optics: Analysis, Methods & Systems, 2016. https://doi.org/10.1364/3d.2016.jw4a.40.
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[125]
2016 | Conference Paper | LibreCat-ID: 64418
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Marwan Bou Sanayeh, Rainer Mich­al­zik, and Tobias Pusch. “Birefringence Tuning of VCSELs.” In Semiconductor Lasers and Laser Dynamics VII, 2016. https://doi.org/10.1117/12.2228091.
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[124]
2016 | Conference Paper | LibreCat-ID: 64411
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Göring. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016. https://doi.org/10.1364/aoms.2016.jw4a.40.
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[123]
2016 | Conference Paper | LibreCat-ID: 64413
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Goring. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016. https://doi.org/10.1364/cosi.2016.jw4a.40.
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[122]
2016 | Conference Paper | LibreCat-ID: 64417
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Goring. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016.
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[121]
2016 | Conference Paper | LibreCat-ID: 64416
Schellenberg, Falk, Markus Finkeldey, Bastian Richter, Nils Christopher Gerhardt, Martin Hofmann, Christof Paar, and Maximilian Schapers. “On the Complexity Reduction of Laser Fault Injection Campaigns Using OBIC Measurements.” In 2015 Workshop on Fault Diagnosis and Tolerance in Cryptography - FDTC 2015, 14–27, 2016. https://doi.org/10.1109/fdtc.2015.10.
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[120]
2016 | Conference Paper | LibreCat-ID: 64407
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “High-Frequency Operation of Spin Vertical-Cavity Surface-Emitting Lasers - towards 100 GHz.” In Spintronics IX, 2016. https://doi.org/10.1117/12.2237163.
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[119]
2016 | Journal Article | LibreCat-ID: 64406
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “Frequency Tuning of Polarization Oscillations in Spin-Lasers.” Spintronics IX, 2016. https://doi.org/10.1117/12.2237566.
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[118]
2016 | Conference Paper | LibreCat-ID: 64408
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Göring. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016. https://doi.org/10.1364/aio.2016.jw4a.40.
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[117]
2016 | Conference Paper | LibreCat-ID: 64409
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Göring. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016. https://doi.org/10.1364/math.2016.jw4a.40.
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[116]
2016 | Conference Paper | LibreCat-ID: 64410
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Go. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016. https://doi.org/10.1364/isa.2016.jw4a.40.
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[115]
2016 | Conference Paper | LibreCat-ID: 64412
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Göring. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016.
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[114]
2015 | Journal Article | LibreCat-ID: 59691
Faria Junior, Paulo E., Gaofeng Xu, Jeongsu Lee, Nils Christopher Gerhardt, Guilherme M. Sipahi, and Igor Žutić. “Toward High-Frequency Operation of Spin Lasers.” Physical Review B 92, no. 7 (2015). https://doi.org/10.1103/physrevb.92.075311.
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[113]
2015 | Journal Article | LibreCat-ID: 59693
Faria Junior, Paulo E., Gaofeng Xu, Jeongsu Lee, Nils Christopher Gerhardt, Guilherme M. Sipahi, and Igor Žutić. “Toward High-Frequency Operation of Spin Lasers.” Physical Review B 92, no. 7 (2015). https://doi.org/10.1103/physrevb.92.075311.
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[112]
2015 | Conference Paper | LibreCat-ID: 64444
Lindemann, Markus, Nils Christopher Gerhardt, Martin Hofmann, Tobias Pusch, and Rainer Michalzik. “Tu­ning the Fre­quen­cy of Po­la­riza­t­i­on Oscil­la­ti­ons in Spin VC­SELs by Me­cha­ni­cal Strain In­duc­tion in GHz-Ran­ge.” In The European Conference on Lasers and Electro-Optics 2015, 2015.
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[111]
2015 | Conference Paper | LibreCat-ID: 64441
Lindemann, Markus, Nils Christopher Gerhardt, Martin Hofmann, T. Pusch, and Rainer Michalzik. “Increasing the Birefringence of VCSELs beyond 250 GHz.” In The European Conference on Lasers and Electro-Optics 2015, 2015.
LibreCat
 
[110]
2015 | Preprint | LibreCat-ID: 64442
Schellenberg, Falk, Markus Finkeldey, Bastian Richter, Nils Christopher Gerhardt, Martin R. Hofmann, Christof Paar, and Maximilian Schäpers. “On the Complexity Reduction of Laser Fault Injection Campaigns Using OBIC Measurements,” 2015.
LibreCat
 
[109]
2015 | Journal Article | LibreCat-ID: 64430
Ad­in­da-Oug­ba, Adamou, Nektarios Koukourakis, Nils Christopher Gerhardt, and Martin Hofmann. “Simple Concept for a Wide-Field Lensless Digital Holographic Microscope Using a Laser Diode.” Current Directions in Biomedical Engineering 1, no. 1 (2015): 261–64. https://doi.org/10.1515/cdbme-2015-0065.
LibreCat | DOI
 
[108]
2015 | Conference Paper | LibreCat-ID: 64432
Cherkashin, Maxim N., Carsten Brenner, Lena Schnitzler, Benjamin Döpke, Nils Christopher Gerhardt, and Martin Hofmann. “Laser-Diode-Based Photoacoustic Setup to Analyze Grüneisen Relaxation-Effect Induced Signal Enhancement.” In Opto-Acoustic Methods and Applications in Biophotonics II, 2015. https://doi.org/10.1117/12.2183957.
LibreCat | DOI
 
[107]
2015 | Conference Paper | LibreCat-ID: 64436
Lindemann, Markus, Henning Höpfner, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “Ultrafast Polarization Dynamics with Controlled Polarization Oscillations in Vertical-Cavity Surface-Emitting Lasers.” In Vertical-Cavity Surface-Emitting Lasers XIX, 1–7, 2015. https://doi.org/10.1117/12.2076920.
LibreCat | DOI
 
[106]
2015 | Conference Paper | LibreCat-ID: 64443
Lindemann, Markus, Henning Höpfner, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “Towards High Frequency Operation of Polarization Oscillations in Spin Vertical-Cavity Surface-Emitting Lasers.” In Spintronics VIII, 2015. https://doi.org/10.1117/12.2197969.
LibreCat | DOI
 
[105]
2015 | Journal Article | LibreCat-ID: 64435
Lindemann, Markus, Henning Höpfner, Nils Christopher Gerhardt, Martin Hofmann, Tobias Pusch, and Rainer Michalzik. “Controlling the Frequency of Ultra-Fast Polarization Oscillations in Spin-VCSELs.” 79. Jahrestagung Der DPG Und DPG-Frühjahrstagung, 2015.
LibreCat
 
[104]
2015 | Conference Paper | LibreCat-ID: 64440
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, T. Pusch, and R. Michalzik. “Tuning the Frequency of Polarization Oscillations in Spin-VCSELs by Mechanical Strain Induction,” 2015.
LibreCat
 
[103]
2015 | Conference Paper | LibreCat-ID: 64438
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. (ORCiD: 0000-0003-1265-0003) Hofmann, T. Pusch, and R. Michalzik. “Increasing the Birefringence of VCSELs beyond 250 GHz,” 2015.
LibreCat
 
[102]
2015 | Conference Paper | LibreCat-ID: 64437
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, T. Pusch, and R. Michalzik. “Increasing the Birefringence of VCSELs beyond 250 GHz,” 2015.
LibreCat
 
[101]
2015 | Conference Paper | LibreCat-ID: 64429
Ad­in­da-Oug­ba, Adamou, Nektarios Koukourakis, Felix Mitschker, Nils Christopher Gerhardt, Martin Hofmann, and Behzad Kabir. “Compact Low-Cost Lensless Digital Holographic Microscope for Topographic Measurements of Microstructures in Reflection Geometry.” In Optical Systems Design 2015, 1–8, 2015. https://doi.org/10.1117/12.2191073.
LibreCat | DOI
 
[100]
2015 | Conference Paper | LibreCat-ID: 64433
Ad­in­da-Oug­ba, Adamou, Nektarios Koukourakis, Aissam Essaidi, Nils Christopher Gerhardt, and Martin Hofmann. “Quantitative Phase Imaging by Wide Field Lensless Digital Holographic Microscope.” In Optical Methods for Inspection, Characterization, and Imaging of Biomaterials II, 952903, 2015. https://doi.org/10.1117/12.2184471.
LibreCat | DOI
 
[99]
2015 | Journal Article | LibreCat-ID: 64428
Lindemann, Markus, Nils Christopher Gerhardt, Martin Hofmann, T. Pusch, and Rainer Michalzik. “Vertical-Cavity Surface-Emitting Lasers with Birefringence Splitting above 250 GHz.” Electronics Letters 51, no. 20 (2015): 1600–1601. https://doi.org/10.1049/el.2015.2149.
LibreCat | DOI
 
[98]
2015 | Conference Paper | LibreCat-ID: 64431
Lindemann, Markus, Henning Höpfner, Nils Christopher Gerhardt, Martin Hofmann, Tobias Pusch, and Rainer Michalzik. “Controlled Switching and Frequency Tuning of Polarization Oscillations in Vertical-Cavity Surface-Emitting Lasers.” In Spintronics VIII, 1–5, 2015. https://doi.org/10.1117/12.2197970.
LibreCat | DOI
 
[97]
2015 | Conference Paper | LibreCat-ID: 64439
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, T. Pusch, and R. Michalzik. “Tuning the Frequency of Polarization Oscillations in Spin-VCSELs by Mechanical Strain Induction,” 2015.
LibreCat
 
[96]
2014 | Conference Paper | LibreCat-ID: 64453
Jaedicke, Volker, Semih Agcaer, Nils Christopher Gerhardt, Martin Hofmann, Francisco E. Robles, Marian Steinert, David Jones, Sebastian Goebel, and Hubert Welp. “Performance Comparison of Different Metrics for Spectroscopic Optical Coherence Tomography.” In Biomedical Applications of Light Scattering VIII, 1–10, 2014. https://doi.org/10.1117/12.2038891.
LibreCat | DOI
 
[95]
2014 | Conference Paper | LibreCat-ID: 64451
Koukourakis, Nektarios, Markus Finkeldey, Nils Christopher Gerhardt, Martin Hofmann, Moritz Stürmer, Ulrike Wallrabe, Jürgen Czarske, and Andreas Fischer. “Effects of Axial Scanning in Confocal Microscopy Employing Adaptive Lenses (CAL).” In Optical Micro- and Nanometrology V, 2014. https://doi.org/10.1117/12.2052152.
LibreCat | DOI
 
[94]
2014 | Journal Article | LibreCat-ID: 64448
Koukourakis, Nektarios, Markus Finkeldey, Nils Christopher Gerhardt, Martin R. Hofmann, Andreas Fischer, Moritz Stürmer, Christoph Leithold, Ulrike Wallrabe, and Jürgen W. Czarske. “Axial Scanning in Confocal Microscopy Employing Adaptive Lenses (CAL).” Optics Express 22, no. 5 (2014): 6025–39. https://doi.org/10.1364/oe.22.006025.
LibreCat | DOI
 
[93]
2014 | Journal Article | LibreCat-ID: 64450
Höpfner, Henning, Markus Lindemann, Nils Christopher Gerhardt, and Martin Hofmann. “Controlled Switching of Ultrafast Circular Polarization Oscillations in Spin-Polarized Vertical-Cavity Surface-Emitting Lasers.” Applied Physics Letters 104, no. 2 (2014): 1–5. https://doi.org/10.1063/1.4862330.
LibreCat | DOI
 
[92]
2014 | Journal Article | LibreCat-ID: 64452
Koukourakis, Nektarios, Nils Christopher Gerhardt, Martin R. Hofmann, Volker Jädicke, Sebastian Göbel, and Hubert Welp. “Multiwavelength Phase Unwrapping and Aberration Correction Using Depth Filtered Digital Holography.” Optics Letters 39, no. 14 (2014): 4160–63. https://doi.org/10.1364/ol.39.004160.
LibreCat | DOI
 
[91]
2014 | Conference Paper | LibreCat-ID: 64449
Höpfner, Henning, Markus Lindemann, Nils Christopher Gerhardt, and Martin Hofmann. “Coherent Switching of Polarization Oscillations in Vertical-Cavity Surface-Emitting Lasers.” In Vertical-Cavity Surface-Emitting Lasers XVIII, 9001–15, 2014. https://doi.org/10.1117/12.2039196.
LibreCat | DOI
 
[90]
2014 | Conference Paper | LibreCat-ID: 64447
Höpfner, Henning, Markus Lindemann, Nils Christopher Gerhardt, and Martin R. Hofmann. “Spin-Controlled Ultrafast Vertical-Cavity Surface-Emitting Lasers.” In Semiconductor Lasers and Laser Dynamics VI, 1–6, 2014. https://doi.org/10.1117/12.2049684.
LibreCat | DOI
 
[89]
2014 | Conference Paper | LibreCat-ID: 64445
Gerhardt, Nils Christopher, Henning Höpfner, Markus Lindemann, and Martin R. Hofmann. “Polarization Dynamics in Spin-Polarized Vertical-Cavity Surface-Emitting Lasers.” In Spintronics VII, 1–10, 2014. https://doi.org/10.1117/12.2063723.
LibreCat | DOI
 
[88]
2014 | Journal Article | LibreCat-ID: 64446
Koukourakis, Nektarios, Markus Finkeldey, Nils Christopher Gerhardt, Martin Hofmann, M. Stürmer, C. Leithold, U. Wallrabe, and J.W. Czarske. “Employing Electrically Tunable Lenses in Confocal Microscopy for Axial Scanning.” International C for Optics. Congress , 2014.
LibreCat
 
[87]
2013 | Journal Article | LibreCat-ID: 64466
Höpfner, Henning, Arne Ludwig, Astrid Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin Hofmann, et al. “Spin Relaxation in Spin Light-Emitting Diodes - Effects of Magnetic Field and Temperature.” Ultrafast Phenomena and Nanophotonics XVII, 2013, 86230A – 1. https://doi.org/10.1117/12.2001511.
LibreCat | DOI
 
[86]
2013 | Conference Paper | LibreCat-ID: 64460
Finkeldey, Markus, Nektarios Koukourakis, Nils Christopher Gerhardt, Martin R. Hofmann, Martin Zimprich, Kerstin Volz, and Wolfgang Stolz. “Optical Gain and Lasing in GaNAsP/BGa(As)P Heterostructures Grown on (001) Silicon Substrate.” In DPG-Frühjahrstagung (DPG Spring Meeting) of the Condensed Matter Section with Its Divisions Biological Physics, Chemical and Polymer Physics, Crystallography, Dielectric Solids, Dynamics and Statistical Physics, Low Temperature Physics, Magnetism, Metal and Material Physics, Physics of Socio-Economic Systems, Semiconductor Physics, Surface Science, Thin Films, Vacuum Science and Technology Together with the Divions Microprobes, and Radiation and Medical Physics as Well as the Working Groups Industry and Business, and “Young DPG,” 2013.
LibreCat
 
[85]
2013 | Conference Paper | LibreCat-ID: 64464
Höpfner, Henning, Arne Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin R. Hofmann, Carola Fritsche, Frank Stromberg, Heiko Wende, and Werner Keune. “Spin Injection and Spin Relaxation: Magnetic Field Effects.” In DPG-Frühjahrstagung (DPG Spring Meeting) of the Condensed Matter Section with Its Divisions Biological Physics, Chemical and Polymer Physics, Crystallography, Dielectric Solids, Dynamics and Statistical Physics, Low Temperature Physics, Magnetism, Metal and Material Physics, Physics of Socio-Economic Systems, Semiconductor Physics, Surface Science, Thin Films, Vacuum Science and Technology Together with the Divions Microprobes, and Radiation and Medical Physics as Well as the Working Groups Industry and Business, and “Young DPG,” 2013.
LibreCat
 
[84]
2013 | Conference Paper | LibreCat-ID: 64456
Gerhardt, Nils Christopher, Martin R. Hofmann, Volker Jaedicke, Semih Aǧcaer, Sebastian Goebel, and Hubert Welp. “Spectral Analysis and Spectroscopic Metrics in Spectroscopic Optical Coherence Tomography,” 2013. https://doi.org/10.1364/fio.2013.fw4a.1.
LibreCat | DOI
 
[83]
2013 | Conference Paper | LibreCat-ID: 64459
Gerhardt, Nils Christopher, Nektarios Koukourakis, Markus Finkeldey, Martin Hofmann, Bernadette Kunert, Martin Zimprich, Kerstin Volz, et al. “Non-Exponential Photoluminescence Transients in GaNAsP Lattice Matched to (001) Silicon Substrate.” In DPG-Frühjahrstagung (DPG Spring Meeting) of the Condensed Matter Section with Its Divisions Biological Physics, Chemical and Polymer Physics, Crystallography, Dielectric Solids, Dynamics and Statistical Physics, Low Temperature Physics, Magnetism, Metal and Material Physics, Physics of Socio-Economic Systems, Semiconductor Physics, Surface Science, Thin Films, Vacuum Science and Technology Together with the Divions Microprobes, and Radiation and Medical Physics as Well as the Working Groups Industry and Business, and “Young DPG,” 2013.
LibreCat
 
[82]
2013 | Journal Article | LibreCat-ID: 64467
Höpfner, Henning, Arne Ludwig, Astrid Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin Hofmann, et al. “Spin Relaxation Length in Quantum Dot Spin LEDs.” Physica Status Solidi 10, no. 9 (2013): 1214–17. https://doi.org/10.1002/pssc.201200689.
LibreCat | DOI
 
[81]
2013 | Conference Paper | LibreCat-ID: 64468
Gerhardt, Nils Christopher, Henning Höpfner, Markus Lindemann, Mingyuan Li, Hendrik Jähme, Martin Hofmann, and Thorsten Ackemann. “Ultrafast Spin-Polarized Vertical-Cavity Surface-Emitting Lasers.” In Spintronics VI, 8313–80, 2013. https://doi.org/10.1117/12.2022720.
LibreCat | DOI
 
[80]
2013 | Journal Article | LibreCat-ID: 64455
Koukourakis, Nektarios, Nils Christopher Gerhardt, Martin Hofmann, Bernardette Kunert, Sven Liebich, Martin Zimprich, Kerstin Volz, et al. “Nonexponential Photoluminescence Transients in a Ga(NAsP) Lattice Matched to a (001) Silicon Substrate.” Physical Review 87, no. 3 (2013). https://doi.org/10.1103/physrevb.87.035303.
LibreCat | DOI
 
[79]
2013 | Journal Article | LibreCat-ID: 64457
Jaedicke, Volker, Nils Christopher Gerhardt, Martin Hofmann, Semih Agcaer, Francisco E. Robles, Marian Steinert, David Jones, Sebastian Goebel, and Hubert Welp. “Comparison of Different Metrics for Analysis and Visualization in Spectroscopic Optical Coherence Tomography.” Biomedical Optics Express 4, no. 12 (2013): 2945–61. https://doi.org/10.1364/boe.4.002945.
LibreCat | DOI
 
[78]
2013 | Conference Paper | LibreCat-ID: 64461
Jaedicke, Volker, Nektarios Koukourakis, Adamou Ad­in­da-Oug­ba, Nils Christopher Gerhardt, Martin Hofmann, Sebastian Goebel, Helge Wiethoff, et al. “Quantitative Phase Analysis through Scattering Media by Depth-Filtered Digital Holography.” In Three-Dimensional and Multidimensional Microscopy, 85891J-85891J – 8, 2013. https://doi.org/10.1117/12.2001159.
LibreCat | DOI
 
[77]
2013 | Journal Article | LibreCat-ID: 64458
Jaedicke, Volker, Nils Christopher Gerhardt, Martin Hofmann, Semih Agcaer, Sebastian Goebel, and Hubert Welp. “Contrast Enhancement Methods in Optical Coherence Tomography Using Spectral Features.” Biomedical Engineering 58, no. Suppl. 1 (2013): 1–2. https://doi.org/10.1515/bmt-2013-4269.
LibreCat | DOI
 
[76]
2013 | Book Chapter | LibreCat-ID: 64462
Ludwig, Arne, Henning Höpfner, Nils Christopher Gerhardt, Jürgen König, Martin R. Hofmann, Andreas Wieck, Björn Sothmann, Jörg Nannen, Tilmar Kümmell, and Gerd Bacher. “Quantum Dot Spintronics - Fundamentals and Applications.” In Magnetic Nanostructures, 235–68, 2013. https://doi.org/10.1007/978-3-642-32042-2_7.
LibreCat | DOI
 
[75]
2013 | Dissertation | LibreCat-ID: 64454
Gerhardt, Nils Christopher, and Fakultät für Elektrotechnik und Informationstechnik. “More than Moore” - Novel Photonic Concepts for Information Technology, 2013.
LibreCat
 
[74]
2013 | Conference Paper | LibreCat-ID: 64465
Höpfner, Henning, Arne Ludwig, Astrid Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin Hofmann, et al. “Spin Injection, Transport, and Relaxation in Spin Light-Emitting Diodes - Magnetic Field Effects.” In Spintronics VI, 8813–43, 2013. https://doi.org/10.1117/12.2023324.
LibreCat | DOI
 
[73]
2012 | Conference Paper | LibreCat-ID: 64476
Koukourakis, Nektarios, Dominic Funke, Nils Christopher Gerhardt, Martin R. Hofmann, Max Klimasch, Sven Liebich, Martin Zimprich, et al. “Photoluminescence and Optical Gain of Ga(NAsP) Heterostructures Pseudomorphically Grown on Silicon (001) Substrate.” In Silicon Photonics VII, 1–6, 2012. https://doi.org/10.1117/12.907677.
LibreCat | DOI
 
[72]
2012 | Conference Paper | LibreCat-ID: 64477
Höpfner, Henning, Mingyuan Li, Arne Ludwig, Astrid Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, et al. “Room Temperature Spin Relaxation in Quantum Dot Based Spin-Optoelectronic Devices.” In Ultrafast Phenomena and Nanophotonics XVI, 1–7, 2012. https://doi.org/10.1117/12.907821.
LibreCat | DOI
 
[71]
2012 | Journal Article | LibreCat-ID: 64485
Koukourakis, Nektarios, Nils Christopher Gerhardt, Martin R. Hofmann, Max Klimasch, Sven Liebich, Daniel Trusheim, Martin Zimprich, Kerstin Volz, Wolfgang Stolz, and Bernadette Kunert. “Time-Resolved Photoluminescence and Optical Gain in Ga(NAsP) Pseudomorphically Grown on Silicon.” 76th Jahrestagung Der DPG (76th Annual Conference of the DPG) and DPG-Frühjahrstagung (Spring Meeting) of the Condensed Matter Section (SKM) with Further DPG Divisions: Environmental Physics, Microprobes, Radiation and Medical Physics, as Well as the DPG Working Groups: Energy, Equal Opportunities, Industry and Business, Information, Philosophy of Physics, Physics and Disarmament, Young DPG, 2012.
LibreCat
 
[70]
2012 | Journal Article | LibreCat-ID: 64483
Höpfner, Henning, Arne Ludwig, Astrid Ebbing, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin R. Hofmann, et al. “Temperature Dependence of the Spin Relaxation Length in Spin Quantum Dot LEDs.” 76th Jahrestagung Der DPG (76th Annual Conference of the DPG) and DPG-Frühjahrstagung (Spring Meeting) of the Condensed Matter Section (SKM) with Further DPG Divisions: Environmental Physics, Microprobes, Radiation and Medical Physics, as Well as the DPG Working Groups: Energy, Equal Opportunities, Industry and Business, Information, Philosophy of Physics, Physics and Disarmament, Young DPG, 2012.
LibreCat
 
[69]
2012 | Journal Article | LibreCat-ID: 64482
Jaedicke, Volker, Semih Agcaer, Nils Christopher Gerhardt, Martin Hofmann, Sebastian Goebel, Helge Wiethoff, and Hubert Welp. “System Development for Spectroscopic Optical Coherence Tomography.” Biomedical Engineering 57, no. Heft SI-1 Track-B (2012): 327. https://doi.org/10.1515/bmt-2012-4245.
LibreCat | DOI
 
[68]
2012 | Journal Article | LibreCat-ID: 64481
Gerhardt, Nils Christopher, and Martin Hofmann. “Spin-Controlled Vertical-Cavity Surface-Emitting Lasers.” Advances in Optical Technologies, 2012, 268949-1-268949–15. https://doi.org/10.1155/2012/268949.
LibreCat | DOI
 
[67]
2012 | Conference Paper | LibreCat-ID: 64470
Li, Mingyuan, Nils Christopher Gerhardt, Martin Hofmann, and Thorsten Ackemann. “Analysis of Birefringence Controlled Ultrafast Polarization Oscillations in Spin Vertical-Cavity Surface-Emitting Lasers.” In EOS Annual Meeting 2012 (EOSAM 2012), 104–7, 2012.
LibreCat
 
[66]
2012 | Journal Article | LibreCat-ID: 64480
Höpfner, Henning, Arne Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin R. Hofmann, Carola Fritsche, Frank Stromberg, Heiko Wende, and Werner Keune. “Spin Relaxation Dynamics in Spin-LEDs.” 76th Jahrestagung Der DPG (76th Annual Conference of the DPG) and DPG-Frühjahrstagung (Spring Meeting) of the Condensed Matter Section (SKM) with Further DPG Divisions: Environmental Physics, Microprobes, Radiation and Medical Physics, as Well as the DPG Working Groups: Energy, Equal Opportunities, Industry and Business, Information, Philosophy of Physics, Physics and Disarmament, Young DPG, 2012.
LibreCat
 
[65]
2012 | Journal Article | LibreCat-ID: 64472
Soldat, Henning, Mingyuan Li, Nils Christopher Gerhardt, Martin Hofmann, Arne Ludwig, Astrid Ebbing, Dirk Reuter, et al. “Erratum: ‘Room Temperature Spin Relaxation Length in Spin Light-Emitting Diodes’ - [Appl. Phys. Lett. 99, 051102 (2011)].” Applied Physics Letters 100, no. 26 (2012): 269902–1. https://doi.org/10.1063/1.4728990.
LibreCat | DOI
 
[64]
2012 | Journal Article | LibreCat-ID: 64473
Koukourakis, Nektarios, Nils Christopher Gerhardt, Martin Hofmann, Christina Bückers, Dominic A. Funke, Sven Liebich, Sati Nath Chatterjee, et al. “High Room-Temperature Optical Gain in Ga(NAsP)/Si Heterostructures.” Applied Physics Letters 100, no. 9 (2012): 092107-1-092107–3. https://doi.org/10.1063/1.3690886.
LibreCat | DOI
 
[63]
2012 | Journal Article | LibreCat-ID: 64474
Höpfner, Henning, Arne Ludwig, Astrid Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin Hofmann, et al. “Magnetic Field Dependence of the Spin Relaxation Length in Spin Light-Emitting Diodes.” Applied Physics Letters 101, no. 11 (2012): 112402-1-112402–4. https://doi.org/10.1063/1.4752162.
LibreCat | DOI
 
[62]
2012 | Journal Article | LibreCat-ID: 64471
Koukourakis, Nektarios, Volker Jaedicke, Adamou Ad­in­da-Oug­ba, Nils Christopher Gerhardt, Martin Hofmann, Sebastian Goebel, Helge Wiethoff, and Henning Höpfner. “Depth-Filtered Digital Holography.” Optics Express 20, no. 20 (2012): 22636–48. https://doi.org/10.1364/oe.20.022636.
LibreCat | DOI
 
[61]
2012 | Conference Paper | LibreCat-ID: 64478
Jaedicke, Volker, Semih Agcaer, Christoph Tobias Kasseck, Nils Christopher Gerhardt, Martin Hofmann, Sebastian Goebel, and Hubert Welp. “Signal Processing for Spectroscopic Optical Coherence Tomography.” In Proceedings of the 7th International Workshop on Biosignal Interpretation (BSI2012), 224–27, 2012.
LibreCat
 
[60]
2012 | Journal Article | LibreCat-ID: 64475
Beckmann, Martin, Claus-Stefan Friedrich, Martin Mienkina, Nils Christopher Gerhardt, Martin Hofmann, and Georg Schmitz. “Multispectral Photoacoustic Coded Excitation Using Pseudorandom Codes - 82231E.” Photons plus Ultrasound, 2012, 82231E-1-82231E – 8. https://doi.org/10.1117/12.907427.
LibreCat | DOI
 
[59]
2011 | Conference Paper | LibreCat-ID: 64497
Gerhardt, Nils Christopher, Nektarios Koukourakis, Dominic Funke, Martin R. Hofmann, Max Klimasch, Bernardette Kunert, Sven Liebich, et al. “Time-Resolved Photoluminescence and Optical Gain of Ga(NAsP) Heterostructures Pseudomorphically Grown on Silicon (001) Substrate.” In 2011 13th International Conference on Transparent Optical Networks (ICTON 2011), 1:111–14, 2011. https://doi.org/10.1109/icton.2011.5970794.
LibreCat | DOI
 
[58]
2011 | Journal Article | LibreCat-ID: 64492
Li, Mingyuan, Hendrik Jähme, Henning Soldat, Nils Christopher Gerhardt, Martin Hofmann, and Thorsten Ackemann. “Birefringence and Spin Controlled Ultrafast Polarization Oscillations in Vertical-Cavity Surface-Emitting Lasers.” 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO Europe/EQEC 2011), 2011, 109. https://doi.org/10.1109/cleoe.2011.5942549.
LibreCat | DOI
 
[57]
2011 | Conference Paper | LibreCat-ID: 64494
Beckmann, Martin, Martin Mienkina, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin Hofmann, and Georg Schmitz. “Photoacoustic Coded Excitation Using Periodically Perfect Sequences.” In 2011 IEEE International Ultrasonics Symposium (IUS 2011), 2:1179–82, 2011. https://doi.org/10.1109/ultsym.2011.0290.
LibreCat | DOI
 
[56]
2011 | Conference Paper | LibreCat-ID: 64486
Gerhardt, Nils Christopher, Martin R. Hofmann, Nektarios Koukourakis, Dominic A. Funke, B. Kunert, S. Liebich, D. Trusheim, et al. “Modal Gain and Time-Resolved Photoluminescence of Ga(NAsP) Heterostructures Pseudomorphically Grown on Silicon (001) Substrate,” 2011.
LibreCat
 
[55]
2011 | Conference Paper | LibreCat-ID: 64487
Gerhardt, Nils Christopher, Martin R. Hofmann, Nektarios Koukourakis, Dominic A. Funke, B. Kunert, S. Liebich, D. Trusheim, et al. “Modal Gain and Time-Resolved Photoluminescence of Ga(NAsP) Heterostructures Pseudomorphically Grown on Silicon (001) Substrate,” 2011.
LibreCat
 
[54]
2011 | Conference Paper | LibreCat-ID: 64496
Friedrich, Claus-Stefan, Martin Mienkina, Nils Christopher Gerhardt, Martin Beckmann, Georg Schmitz, Martin R. Hofmann, Carsten Brenner, Manfred Jörger, and Andreas Strauß. “Quantitative Photoacoustic Blood Oxygenation Measurement of Whole Porcine Blood Samples Using a Multi-Wavelength Semiconductor Laser System.” In Diffuse Optical Imaging III, 1–9, 2011. https://doi.org/10.1117/12.889682.
LibreCat | DOI
 
[53]
2011 | Journal Article | LibreCat-ID: 64495
Koukourakis, Nektarios, Mingyuan Li, Ryan Yiu Wai Lai, Carsten Brenner, Nils Christopher Gerhardt, Martin Hofmann, Tarek Abdelwahab, Henning Höpfner, and Emmanouil Darakis. “Photorefractive Two-Wave Mixing for Image Amplification in Digital Holography.” Optics Express 19, no. 22 (2011): 22004–23. https://doi.org/10.1364/oe.19.022004.
LibreCat | DOI
 
[52]
2011 | Conference Paper | LibreCat-ID: 64493
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin Hofmann, Georg Schmitz, and Alexander Eder. “Ex­pe­ri­men­tal Eva­lua­ti­on of Mul­tis­pec­tral Pho­toa­coustic Coded Ex­ci­ta­ti­on Using Or­tho­go­nal Uni­po­lar Golay Codes.” In 442. Wilhelm Und Else Heraeus-Seminar “Molecular Imaging” in Bad Honnef, October 5th - 8th, 2009, 2011.
LibreCat
 
[51]
2011 | Conference Paper | LibreCat-ID: 64488
Gerhardt, Nils Christopher, Martin R. Hofmann, Nektarios Koukourakis, Dominic A. Funke, B. Kunert, S. Liebich, D. Trusheim, et al. “Modal Gain and Time-Resolved Photoluminescence of Ga(NAsP) Heterostructures Pseudomorphically Grown on Silicon (001) Substrate,” 2011.
LibreCat
 
[50]
2011 | Conference Paper | LibreCat-ID: 64489
Brenner, Carsten, Nils Christopher Gerhardt, Martin R. Hofmann, Georg Schmitz, Claus-Stefan Friedrich, Martin P. Mienkina, Martin F. Beckmann, Manfred Jörger, and Andreas Strauß. “Quantitative Photoacoustic Blood Oxygenation Measurement of Whole Porcine Blood Samples Using a Multi-Wavelength Semiconductor Laser System,” 2011.
LibreCat
 
[49]
2011 | Conference Paper | LibreCat-ID: 64491
Gerhardt, Nils Christopher, Martin R. Hofmann, Nektarios Koukourakis, Dominic A. Funke, B. Kunert, S. Liebich, D. Trusheim, et al. “Modal Gain and Time-Resolved Photoluminescence of Ga(NAsP) Heterostructures Pseudomorphically Grown on Silicon (001) Substrate,” 2011.
LibreCat
 
[48]
2011 | Conference Paper | LibreCat-ID: 64490
Gerhardt, Nils Christopher, Martin R. Hofmann, Volker Jaedicke, Christoph Kasseck, Helge Wiethoff, Semih Agcaer, and Hubert Welp. “Spectroscopic Optical Coherence Tomography for Substance Identification,” 2011.
LibreCat
 
[47]
2010 | Journal Article | LibreCat-ID: 64505
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin F. Schiffner, Martin Hofmann, Georg Schmitz, and Martin F. Beckmann. “Multispectral Photoacoustic Coded Excitation Imaging Using Unipolar Orthogonal Golay Codes.” Optics Express 18, no. 9 (2010): 9076–87. https://doi.org/10.1364/oe.18.009076.
LibreCat | DOI
 
[46]
2010 | Journal Article | LibreCat-ID: 64502
Lai, Ryan Yiu Wai, Nektarios Koukourakis, Nils Christopher Gerhardt, Sven Hamann, Michael Ehmann, Klaus Hackl, Alfred Ludwig, Robert Meyer, Martin R. Hofmann, and Emmanouil Darakis. “Integrity of Micro-Hotplates during High-Temperature Operation Monitored by Digital Holographic Microscopy.” Journal of Microelectromechanical Systems 19, no. 5 (2010): 1175–79. https://doi.org/10.1109/jmems.2010.2067442.
LibreCat | DOI
 
[45]
2010 | Journal Article | LibreCat-ID: 64500
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Wilko G. Wilkening, Martin Hofmann, and Georg Schmitz. “Experimental Evaluation of Photoacoustic Coded Excitation Using Unipolar Golay Codes.” IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 57, no. 7 (2010): 1583–93. https://doi.org/10.1109/tuffc.2010.1588.
LibreCat | DOI
 
[44]
2010 | Conference Paper | LibreCat-ID: 64501
Gerhardt, Nils Christopher, Mingyuan Li, Hendrik Jähme, Henning Soldat, Martin R. Hofmann, and Thorsten Ackemann. “Gigahertz Circular Polarization Oscillations in Spin-Polarized Vertical-Cavity Surface-Emitting Lasers.” In Conference on Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010, 1–2, 2010. https://doi.org/10.1364/cleo.2010.cme6.
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[43]
2010 | Conference Paper | LibreCat-ID: 64503
Koukourakis, Nektarios, Dominic Funke, Nils Christopher Gerhardt, Martin Hofmann, Bernardette Kunert, Sven Liebich, S. Zinnkann, et al. “Modal Gain Analysis of GaNAsP Heterostructures on Silicon.” In Frontiers in Optics, 2010. https://doi.org/10.1364/fio.2010.jwa56.
LibreCat | DOI
 
[42]
2010 | Conference Paper | LibreCat-ID: 64506
Jaedicke, Volker, Christoph Tobias Kasseck, Nils Christopher Gerhardt, Martin Hofmann, and Hubert Welp. “Substance Identification in Spectroscopic Optical Coherence Tomograhpy Using Pattern Recognition.” In Frontiers in Optics, 2010. https://doi.org/10.1364/fio.2010.ftuy2.
LibreCat | DOI
 
[41]
2010 | Conference Paper | LibreCat-ID: 64499
Gerhardt, Nils Christopher, Martin R. Hofmann, Nektarios Koukourakis, and Yiu Wai Lai. “Photorefractive Two-Wave Mixing for Image Amplification in Digital Holography,” 2010. https://doi.org/10.1364/fio.2010.fthbb5.
LibreCat | DOI
 
[40]
2010 | Conference Paper | LibreCat-ID: 64504
Beckmann, Martin, Martin Mienkina, Georg Schmitz, Claus-Stefan Friedrich, Nils Christopher Gerhardt, and Martin R. Hofmann. “Monospectral Photoacoustic Imaging Using Legendre Sequences.” In 2010 IEEE International Ultrasonics Symposium (IUS), 1:386–89, 2010. https://doi.org/10.1109/ultsym.2010.5935648.
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[39]
2010 | Conference Paper | LibreCat-ID: 64498
Gerhardt, Nils Christopher, Martin R. Hofmann, Nektarios Koukourakis, Dominic A. Funke, B. Kunert, S. Liebich, S. Zinnkann, et al. “Modal Gain Analysis of GaNAsP Heterostructures on Silicon,” 2010.
LibreCat
 
[38]
2009 | Journal Article | LibreCat-ID: 64520
Gerhardt, Nils Christopher, Nektarios Koukourakis, Martin Hofmann, Bernadette Kunert, Igor Nemeth, Steffen Zinnkann, G. Lukin, et al. “Op­ti­cal Ve­ri­fi­ca­ti­on of Gain in Ga(NAsP)/(BGa)(AsP) Mul­ti-Quan­tum-Well He­te­rost­ruc­tu­res Mo­no­li­thi­cal­ly Grown Lat­ti­ce-Mat­ched on (001) Si­li­con Sub­stra­te.” Papers Presented at the 35th International Symposium on Compound Semiconductors (ISCS 2008), Rust, Germany, 21 - 24 September 2008, 2009, 1349–1523.
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[37]
2009 | Conference Paper | LibreCat-ID: 64514
Gerhardt, Nils Christopher, Martin Hofmann, Christoph Lange, Sati Nath Chatterjee, Bernadette Kunert, Kerstin Volz, Wolfgang Stolz, and Wolfgang W. Rühle. “Gain Characteristics and Lasing of Ga(NAsP) Multi-Quantum Well Structures.” In Papers Presented at the 9th International Workshop on Nonlinear Optics and Excitation Kinetics in Semiconductors (NOEKS 9), 576–78, 2009. https://doi.org/10.1002/pssc.200880360.
LibreCat | DOI
 
[36]
2009 | Conference Paper | LibreCat-ID: 64519
Koukourakis, Nektarios, Christoph Kasseck, Nils Christopher Gerhardt, Martin Hofmann, Daniel Rytz, Sebastian Köber, Michael Salvador, and Klaus Meerholz. “New Concepts for Depth Resolved Holographic Imaging Based on Spectrally Tunable Diode Lasers.” In Conference on Lasers and Electro-Optics, 2009 and 2009 Quantum Electronics and Laser Science Conference, 1253–54, 2009. https://doi.org/10.1364/cleo.2009.ctuaa2.
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[35]
2009 | Conference Paper | LibreCat-ID: 64517
Gerhardt, Nils Christopher, Bernadette Kunert, Siegfried Liebich, M. Zimprich, Steffen Zinnkann, R. Fritz, Kerstin Volz, et al. “Lasing of the III/V Compound Semiconductor Ga(NAsP) Integrated Lattice-Matched to Si Substrate.” In Group IV Photonics, 199–201, 2009. https://doi.org/10.1109/group4.2009.5338394.
LibreCat | DOI
 
[34]
2009 | Journal Article | LibreCat-ID: 64511
Koukourakis, Nektarios, Martin Breede, Nils Christopher Gerhardt, Martin Hofmann, Sebastian Köber, Michael Salvador, and Klaus Meerholz. “Depth Resolved Holographic Imaging with Variable Depth Resolution Using Spectrally Tunable Diode Laser.” Electronics Letters 45, no. 1 (2009): 46–48. https://doi.org/10.1049/el:20092390.
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[33]
2009 | Conference Paper | LibreCat-ID: 64523
Kasseck, Christoph, Nils Christopher Gerhardt, Thilo Gambichler, Martin Hofmann, Marita Kratz, Antonia Torcasio, G. Harry van Lenthe, Klaus Hoffmann, and David B. Jones. “Three-Dimensional Bone Imaging: Optical Coherence Tomography versus Micro Computer Tomography.” In Optical Coherence Tomography and Coherence Techniques IV, 73721B, 2009. https://doi.org/10.1117/12.831814.
LibreCat | DOI
 
[32]
2009 | Journal Article | LibreCat-ID: 64521
Koukourakis, Nektarios, Christoph Kasseck, Nils Christopher Gerhardt, Martin Hofmann, and Daniel Rytz. “Single-Shot Holography for Depth Resolved Three Dimensional Imaging.” Optics Express 17, no. 23 (2009): 21015–29. https://doi.org/10.1364/oe.17.021015.
LibreCat | DOI
 
[31]
2009 | Conference Paper | LibreCat-ID: 64518
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin Hofmann, and Georg Schmitz. “Multispectral Photoacoustic Coded Excitation Using Orthogonal Unipolar Golay Codes.” In Diagnostic Imaging, 217–20, 2009. https://doi.org/10.1007/978-3-642-03879-2_61.
LibreCat | DOI
 
[30]
2009 | Conference Paper | LibreCat-ID: 64516
Gerhardt, Nils Christopher, Nektarios Koukourakis, Martin Hofmann, Christoph Lange, Niko S. Köster, Daniel J. Franzbach, Sati Nath Chatterjee, et al. “Lasing in Optically Pumped Ga(NAsP)/(BGa)(AsP) Heterstructures on Silicon.” In Conference on Lasers and Electro-Optics, 2009 and 2009 Quantum Electronics and Laser Science Conference, 1–2, 2009. https://doi.org/10.1364/cleo.2009.ctuy2.
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[29]
2009 | Conference Paper | LibreCat-ID: 64515
Gerhardt, Nils Christopher, Nektarios Koukourakis, Martin Hofmann, Bernadette Kunert, Siegfried Liebich, Steffen Zinnkann, Robert Nemeth, et al. “Laser Operation of III/V Compound Material Ga(NAsP) Grown Lattice-Matched on (001) Si Substrate.” In Device Research Conference, 193–94, 2009. https://doi.org/10.1109/drc.2009.5354936.
LibreCat | DOI
 
[28]
2009 | Conference Paper | LibreCat-ID: 64513
Mienkina, Martin, Georg Schmitz, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin Hofmann, and Annika Eder. “Feasibility Study of Multispectral Photoacoustic Coded Excitation Using Orthogonal Unipolar Golay Codes.” In 2009 IEEE Ultrasonics Symposium, 1:108–11, 2009. https://doi.org/10.1109/ultsym.2009.5441941.
LibreCat | DOI
 
[27]
2009 | Journal Article | LibreCat-ID: 64512
Mienkina, Martin, Claus-Stefan Friedrich, Karin Hensel, Nils Christopher Gerhardt, Martin Hofmann, and Georg Schmitz. “Evaluation of Ferucarbotran (Resovist®) as a Photoacoustic Contrast Agent.” Biomedical Engineering 54, no. 2 (2009): 83–88. https://doi.org/10.1515/bmt.2009.012.
LibreCat | DOI
 
[26]
2009 | Conference Paper | LibreCat-ID: 64522
Hövel, Stephan, Nils Christopher Gerhardt, Martin Hofmann, Fang-Yuh Lo, Dirk Reuter, Andreas Wieck, Ellen Ursula Schuster, and Werner Keune. “Spin-Con­trol­led Op­to­elec­tro­nic De­vices.” In Papers Presented at the 9th International Workshop on Nonlinear Optics and Excitation Kinetics in Semiconductors (NOEKS 9), 436–39, 2009. https://doi.org/10.1002/pssc.200880357.
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[25]
2009 | Conference Paper | LibreCat-ID: 64509
Friedrich, Claus-Stefan, Martin Mienkina, Nils Christopher Gerhardt, Georg Schmitz, Martin Hofmann, and Mona-Carina Wawreczko. “Compact Semiconductor Laser Sources for Photoacoustic Imaging.” In Photons plus Ultrasound, 1–7, 2009. https://doi.org/10.1117/12.809261.
LibreCat | DOI
 
[24]
2009 | Conference Paper | LibreCat-ID: 64510
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin R. Hofmann, Georg Schmitz, and Annika Eder. “Comparison of Coding Techniques for Photoacoustic Coded Excitation.” In Proceedings, 1:313–16, 2009.
LibreCat
 
[23]
2008 | Conference Paper | LibreCat-ID: 64524
Friedrich, Claus-Stefan, Nils Christopher Gerhardt, Martin Hofmann, Georg Schmitz, Martin P. Mienkina, and Annika Eder. “Evaluation of Simplex Codes for Photoacoustic Coded Excitation.” In 4th European Conference of the International Federation for Medical and Biological Engineering, 1:444–47, 2008. https://doi.org/10.1007/978-3-540-89208-3_105.
LibreCat | DOI
 
[22]
2008 | Conference Paper | LibreCat-ID: 64525
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin Hofmann, Georg Schmitz, and Alexander Eder. “Simulation Study of Photoacoustic Coded Excitation Using Golay Codes.” In IEEE Ultrasonics Symposium, 2008, 1242–45, 2008. https://doi.org/10.1109/ultsym.2008.0300.
LibreCat | DOI
 
[21]
2007 | Conference Paper | LibreCat-ID: 64527
Breede, Martin, Christoph Kasseck, Carsten Brenner, Nils Christopher Gerhardt, Martin Hofmann, and Roland Höfling. “External-Cavity Diode Laser Utilizing a Micromirror Device for Spectral Tuning.” In Optical Measurement Systems for Industrial Inspection V, 1–11, 2007. https://doi.org/10.1117/12.726825.
LibreCat | DOI
 
[20]
2007 | Journal Article | LibreCat-ID: 64528
Breede, Martin, Christoph Kasseck, Carsten Brenner, Nils Christopher Gerhardt, Martin Hofmann, and Roland Höfling. “Micromirror Device Controlled Tunable Diode Laser.” Electronics Letters 43, no. 8 (2007): 456–57. https://doi.org/10.1049/el:20073651.
LibreCat | DOI
 
[19]
2007 | Conference Paper | LibreCat-ID: 64529
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Karin Hensel, Carsten Brenner, Martin Hofmann, Georg Schmitz, and Kelly Waldeck. “Photoacoustic Imaging of Fibrosarcoma Using RGD-Cy 3 as a Targeted Contrast Agent.” In IEEE Ultrasonics Symposium, 2007, 5:2409–12, 2007. https://doi.org/10.1109/ultsym.2007.606.
LibreCat | DOI
 
[18]
2007 | Journal Article | LibreCat-ID: 64526
Mienkina, Martin, Nils Christopher Gerhardt, Martin Breede, Carsten Brenner, Martin Hofmann, Georg Schmitz, and Kelly Waldeck. “Evaluation Eines Kommerziellen Ultraschallgeräts Für Den Einsatz Im Photoakustischen Reflexionsmodus.” Biomedical Engineering 52, no. S1 (2007): G2-1.
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[17]
2007 | Journal Article | LibreCat-ID: 64531
Hövel, Stephan, Nils Christopher Gerhardt, Carsten Brenner, Martin Hofmann, Fang-Yuh Lo, Dirk Reuter, Andreas Wieck, Ellen Ursula Schuster, and Werner Keune. “Spin-Controlled LEDs and VCSELs.” Physica Status Solidi 204, no. 2 (2007): 500–507. https://doi.org/10.1002/pssa.200673219.
LibreCat | DOI
 
[16]
2007 | Conference Paper | LibreCat-ID: 64530
Kasseck, Christoph, Nils Christopher Gerhardt, Martin Hofmann, and Kirsten Lehmann. “Spectroscopic Fourier Domain Optical Coherence Tomography.” In Optical Coherence Tomography and Coherence Techniques III, 1–9, 2007. https://doi.org/10.1117/12.728416.
LibreCat | DOI
 
[15]
2006 | Dissertation | LibreCat-ID: 64534
Gerhardt, Nils Christopher, and Fakultät für Elektrotechnik und Informationstechnik. Optische Verstärkung Und Spin-Kontrollierte Emission von Halbleiterlasern, 2006.
LibreCat
 
[14]
2006 | Journal Article | LibreCat-ID: 64533
Mienkina, Martin, Karin Hensel, Ngoc Tuyen Le, Nils Christopher Gerhardt, Erik Bründermann, Martina Havenith, Martin Hofmann, Georg Schmitz, and Ilona Kopf. “Experimentelle Charakterisierung von Ferucarbotran Als Photoakustisches Kontrastmittel.” Biomedical Engineering 51, no. Suppl. (2006): 1–2.
LibreCat
 
[13]
2006 | Conference Paper | LibreCat-ID: 64532
Mienkina, Martin, Karin Hensel, Ngoc Tuyen Le, Nils Christopher Gerhardt, Christian Hansen, Martin Hofmann, and Georg Schmitz. “Experimental Characterization of Ferucarbotran (Resovist ®) as a Photoacoustic Nanoparticle Contrast Agent.” In Proceedings, 1:393–96, 2006. https://doi.org/10.1109/ultsym.2006.111.
LibreCat | DOI
 
[12]
2005 | Conference Paper | LibreCat-ID: 64536
Gerhardt, Nils Christopher, Stephan Hövel, Carsten Brenner, Martin Hofmann, Dirk Reuter, Andreas Wieck, and Junling Yang. “Spin-Controlled LEDs and VCSELs.” In Physics and Simulation of Optoelectronic Devices XIII, 221–29, 2005. https://doi.org/10.1117/12.590346.
LibreCat | DOI
 
[11]
2005 | Journal Article | LibreCat-ID: 64535
Gerhardt, Nils Christopher, Stephan Hövel, Carsten Brenner, Martin Hofmann, Fang-Yuh Lo, Dirk Reuter, Andreas Wieck, Kurt Westerholt, Ellen Ursula Schuster, and Werner Keune. “Electron Spin Injection into GaAs from Ferromagnetic Contacts in Remanence.” Applied Physics Letters 87, no. 3 (2005): 1–3. https://doi.org/10.1063/1.1996843.
LibreCat | DOI
 
[10]
2003 | Conference Paper | LibreCat-ID: 64538
Hofmann, Martin, and Nils Christopher Gerhardt. “Gain and Emission Dynamics of Dilute Nitride Quantum Well Lasers.” In Frontiers in Optics 2003, 2003. https://doi.org/10.1364/fio.2003.thn1.
LibreCat | DOI
 
[9]
2003 | Conference Paper | LibreCat-ID: 64539
Gerhardt, Nils Christopher, Norbert Hofmann, Wolfgang Stolz, Wolfgang Koch, Jörg Hader, Jerome V. Moloney, A. Yu Egorov, and Henning Riechert. “Optical Gain of 1.3 Μm (GaIn)(NAs)/GaAs Lasers - a Comparison between Theory and Experiment.” In Special Section on Semiconductor Optoelectronics, 2003.
LibreCat
 
[8]
2003 | Journal Article | LibreCat-ID: 64540
Gerhardt, Nils Christopher, Martin Hofmann, and Wolfgang W. Rühle. “Optical Spectroscopy of 1.3 Μm (GaIn)(NAs)/GaAs Lasers.” IEE Proceedings 150, no. 1 (2003): 45–48. https://doi.org/10.1049/ip-opt:20030035.
LibreCat | DOI
 
[7]
2003 | Conference Paper | LibreCat-ID: 64537
Gerhardt, Nils Christopher, and Martin R. Hofmann. “Experimentelle Methoden Zur Bestimmung Der Optischen Verstärkung von 1.3µm (GaIn)(NAs)/GaAs Halbleiterlasern.” In Frühjahrstagung Des Arbeitskreises Festkörperphysik Bei Der DPG, 2003.
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[6]
2002 | Journal Article | LibreCat-ID: 64541
Hofmann, Martin, Nils Christopher Gerhardt, Anke Wagner, Christoph Ellmers, Falko Höhnsdorf, Jörg Koch, Wolfgang Stolz, et al. “Emission Dynamics and Optical Gain of 1.3 \mum (GaIn)(NAs)/GaAs Lasers.” IEEE Journal of Quantum Electronics / Institute of Electrical and Electronics Engineers 38, no. 2 (2002): 213–21. https://doi.org/10.1109/3.980275.
LibreCat | DOI
 
[5]
2002 | Conference Paper | LibreCat-ID: 64542
Gerhardt, Nils Christopher, Martin Hofmann, K. Hantke, Wolfgang Stolz, Stephan W. Koch, Jörg Hader, Jerome V. Moloney, A. Yu Egorov, and Henning Riechert. “Influence of Growth Conditions on the Optical Gain of 1.3 /Spl Mu/m (GaIn)(NAs)/GaAs Lasers.” In Conference Digest, 85–86, 2002. https://doi.org/10.1109/islc.2002.1041130.
LibreCat | DOI
 
[4]
2001 | Conference Paper | LibreCat-ID: 64543
Hofmann, Martin, Nils Christopher Gerhardt, Anke Wagner, Christoph Ellmers, Falko Höhnsdorf, Jörg Koch, Simone Leu, Wolfgang Stolz, and Wolfgang W. Rühle. “Emission Dynamics of (GaIn)(NAs)/GaAs Lasers Emitting at 1.3 Μm.” In Physics and Simulation of Optoelectronic Devices IX, 256–66, 2001. https://doi.org/10.1117/12.432573.
LibreCat | DOI
 
[3]
2001 | Conference Paper | LibreCat-ID: 64545
Hofmann, Martin R., Nils Christopher Gerhardt, A. Wagner, C. Ellmers, F. Höhnsdorf, J. Koch, S.W. Koch, et al. “Optische Verstärkung von (GaIn)(NAs)/GaAs Halbleiterlasern.” In 65. Physikertagung & Frühjahrstagung Des Arbeitskreises Festkörperphysik Bei Der DPG, 2001.
LibreCat
 
[2]
2001 | Conference Paper | LibreCat-ID: 64546
Hofmann, Martin, Nils Christopher Gerhardt, Anke Wagner, Wolfgang Stolz, Stephan W. Koch, Wolfgang W. Rühle, and Jörg Hader. “Physics of 1.3µm (GaIn)(NAs)/GaAs Semiconductor Lasers.” In LEOS 2001, 1:326–27, 2001. https://doi.org/10.1109/leos.2001.969307.
LibreCat | DOI
 
[1]
2001 | Book Chapter | LibreCat-ID: 64547
Hägele, Daniel, Nils Christopher Gerhardt, Martin Hofmann, Michael Oestreich, Jens Hübner, Markus Bender, Wolfgang W. Rühle, et al. “Spintronics - Spin Electronics and Optoelectronics in Semiconductors.” In Advances in Solid State Physics 41, 173–86, 2001. https://doi.org/10.1007/3-540-44946-9_15.
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[180]
2025 | Journal Article | LibreCat-ID: 61932
Ledentsov, Nikolay N., Nikolay Ledentsov, Vitaly A. Shchukin, Alexander N. Ledentsov, Oleg Yu. Makarov, Ilya E. Titkov, Markus Lindemann, et al. “VCSELs: Influence of Design on Performance and Data Transmission over Multi-Mode and Single-Mode Fibers.” Photonics 12, no. 10 (2025). https://doi.org/10.3390/photonics12101037.
LibreCat | DOI
 
[179]
2025 | Journal Article | LibreCat-ID: 61931
Diiankova, Uliana, Mariusz Drong, Tobias Pusch, Rainer Michalzik, Markus Lindemann, Nils Christopher Gerhardt, and Martin R. Hofmann. “Multimode Vertical-Cavity Surface-Emitting Lasers under Spin Injection.” APL Photonics 10, no. 10 (2025). https://doi.org/10.1063/5.0286998.
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[178]
2025 | Journal Article | LibreCat-ID: 64551
Lindemann, M., M. D’Alessandro, N. Ledentsov, O. Y. Makarov, N. N. Ledentsov, A. Tibaldi, Nils Christopher Gerhardt, and M. R. Hofmann. “Laterally Coupled Vertical-Cavity Surface-Emitting Lasers with                    Tunable Resonance Width and Frequency.” Journal of Applied Physics 138, no. 5 (2025). https://doi.org/10.1063/5.0275622.
LibreCat | DOI
 
[177]
2025 | Conference Paper | LibreCat-ID: 64293
Gerhardt, Nils Christopher, Martin R. Hofmann, Leon Zens, Jens Möller, and Vira Besaga. “Quantitative Holography for the Characterisation of Semiconductor Amplifieres and Lasers.” In Practical Holography XXXIX: Displays, Materials, and Applications, 2025. https://doi.org/10.1117/12.3041318.
LibreCat | DOI
 
[176]
2024 | Journal Article | LibreCat-ID: 64550
Zens, Leon, Vira Besaga, Jens Möller, Nils Christopher Gerhardt, and Martin Hofmann. “Holographic Measurement of Gain and Linewidth Enhancement Factor in Semiconductor Waveguides.” Optics Express, 2024. https://doi.org/10.1364/oe.538741.
LibreCat | DOI
 
[175]
2024 | Journal Article | LibreCat-ID: 64585
Lindemann, Markus, Nils Christopher Gerhardt, Pambiang Abel Dainone, Pierre Renucci, Alexandre Bouché, Martina Morassi, Xavier Devaux, et al. “Controlling the Helicity of Light by Electrical Magnetization Switching.” Nature 627, no. 8005 (2024): 783–88. https://doi.org/10.1038/s41586-024-07125-5.
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[174]
2024 | Journal Article | LibreCat-ID: 64549
Zens, Leon, Vira Besaga, Jens Möller, Nils Christopher Gerhardt, and Martin Hofmann. “Holographic Measurement of Gain and Linewidth Enhancement Factor in Semiconductor Waveguides.” Optics Express, 2024. https://doi.org/10.1364/oe.538741.
LibreCat | DOI
 
[173]
2024 | Conference Paper | LibreCat-ID: 64296
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, N. N. Ledentsov, V. A. Shchukin, O. Y. Makarov, V. Zerova, M. D’alessandro, A. Tibaldi, and J. P. Turkiewicz. “Study of Electrically Excited Photon-Photon Resonances in Self-Injection-Locked Coupled-Cavity VCSELs.” In 2024 IEEE 29th International Semiconductor Laser Conference (ISLC), 2024. https://doi.org/10.1109/islc57752.2024.10717381.
LibreCat | DOI
 
[172]
2024 | Journal Article | LibreCat-ID: 64295
Zens, Leon, Vira Besaga, Jens Möller, Nils Christopher Gerhardt, and Martin R. Hofmann. “Holographic Measurement of Gain and Linewidth Enhancement Factor in Semiconductor Waveguides.” Optics Express 33, no. 1 (2024): 34–49. https://doi.org/10.1364/oe.538741.
LibreCat | DOI
 
[171]
2024 | Journal Article | LibreCat-ID: 59663
Dainone, Pambiang Abel, Nicholas Figueiredo Prestes, Pierre Renucci, Alexandre Bouché, Martina Morassi, Xavier Devaux, Markus Lindemann, et al. “Controlling the Helicity of Light by Electrical Magnetization Switching.” Nature 627, no. 8005 (2024): 783–88. https://doi.org/10.1038/s41586-024-07125-5.
LibreCat | DOI
 
[170]
2022 | Journal Article | LibreCat-ID: 59668
Heermeier, Niels, Tobias Heuser, Jan Große, Natalie Jung, Arsenty Kaganskiy, Markus Lindemann, Nils Christopher Gerhardt, Martin R. Hofmann, and Stephan Reitzenstein. “Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities.” Laser & Photonics Reviews 16, no. 4 (2022). https://doi.org/10.1002/lpor.202100585.
LibreCat | DOI
 
[169]
2020 | Journal Article | LibreCat-ID: 59686
Shi, Yuting, Lisa C. Kreuzer, Nils Christopher Gerhardt, Marianna Pantouvaki, Joris Van Campenhout, Marina Baryshnikova, Robert Langer, Dries Van Thourhout, and Bernardette Kunert. “Time-Resolved Photoluminescence Characterization of InGaAs/GaAs Nano-Ridges Monolithically Grown on 300 Mm Si Substrates.” Journal of Applied Physics 127, no. 10 (2020). https://doi.org/10.1063/1.5139636.
LibreCat | DOI
 
[168]
2020 | Journal Article | LibreCat-ID: 59685
Žutić, Igor, Gaofeng Xu, Markus Lindemann, Paulo E. Faria Junior, Jeongsu Lee, Velimir Labinac, Kristian Stojšić, Guilherme M. Sipahi, Martin R. Hofmann, and Nils Christopher Gerhardt. “Spin-Lasers: Spintronics beyond Magnetoresistance.” Solid State Communications 316–317 (2020). https://doi.org/10.1016/j.ssc.2020.113949.
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[167]
2020 | Journal Article | LibreCat-ID: 59684
Schnitzler, Lena, Krisztian Neutsch, Falk Schellenberg, Martin R. Hofmann, and Nils Christopher Gerhardt. “Confocal Laser Scanning Holographic Microscopy of Buried Structures.” Applied Optics 60, no. 4 (2020). https://doi.org/10.1364/ao.403687.
LibreCat | DOI
 
[166]
2019 | Conference Paper | LibreCat-ID: 64361
Neutsch, Krisztian, Martin R. Hofmann, Nils Christopher Gerhardt, Lena Schnitzler, and Marlon J. Tranelis. “Three-Dimensional Particle Localization with Common-Path Digital Holographic Microscopy.” In Practical Holography XXXIII: Displays, Materials, and Applications, 2019. https://doi.org/10.1117/12.2509448.
LibreCat | DOI
 
[165]
2019 | Book Chapter | LibreCat-ID: 64360
Gerhardt, Nils Christopher, Igor Žutić, Jeongsu Lee, Christian Gøthgen, Junior Farla, Paulo E., Gaofeng Xu, and Guilherme M. Sipahi. “Semiconductor Spin-Lasers.” In Nanoscale Spintronics and Applications, 499–540, 2019.
LibreCat
 
[164]
2019 | Journal Article | LibreCat-ID: 59687
Lindemann, Markus, Gaofeng Xu, Tobias Pusch, Rainer Michalzik, Martin R. Hofmann, Igor Žutić, and Nils Christopher Gerhardt. “Ultrafast Spin-Lasers.” Nature 568, no. 7751 (2019): 212–15. https://doi.org/10.1038/s41586-019-1073-y.
LibreCat | DOI
 
[163]
2018 | Conference Paper | LibreCat-ID: 64371
Hofmann, Martin R., Marcel Lenz, Robin Krug, Nils Christopher Gerhardt, Kirsten Schmieder, Christopher Dillmann, and Hubert Welp. “Brain Tissue Analysis Using Texture Features Based on Optical Coherence Tomography Images.” In Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXII, 2018. https://doi.org/10.1117/12.2292032.
LibreCat | DOI
 
[162]
2018 | Conference Paper | LibreCat-ID: 64372
Lenz, Marcel, Robin Krug, Nils Christopher Gerhardt, Kirsten Schmieder, Martin R. Hofmann, Christopher Dillmann, and Hubert Welp. “Classification of Brain Tissue with Optical Coherence Tomography by Employing Texture Analysis.” In Optics, Photonics, and Digital Technologies for Imaging Applications V, 2018. https://doi.org/10.1117/12.2307701.
LibreCat | DOI
 
[161]
2018 | Conference Paper | LibreCat-ID: 64376
Hofmann, Martin R., Nils Christopher Gerhardt, Markus Finkeldey, and Lena Göring. “Digital Holography for the Investigation of Buried Structures with a Common-Path Reflection Microscope.” In Practical Holography XXXII: Displays, Materials, and Applications, 2018. https://doi.org/10.1117/12.2289524.
LibreCat | DOI
 
[160]
2018 | Conference Paper | LibreCat-ID: 64379
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, Rainer Michalzik, and Sebastian Scherübl. “Thermally-Induced Birefringence in VCSELs - Approaching the Limits.” In Semiconductor Lasers and Laser Dynamics VIII, 2018. https://doi.org/10.1117/12.2306215.
LibreCat | DOI
 
[159]
2018 | Conference Paper | LibreCat-ID: 64375
Lindemann, Markus, Nils Christopher Gerhardt, Martin Hofmann, Tobias Pusch, and Rainer Michalzik. “Demonstrating Ultrafast Polarization Dynamics in Spin-VCSELs.” In Vertical-Cavity Surface-Emitting Lasers XXII, 2018. https://doi.org/10.1117/12.2289560.
LibreCat | DOI
 
[158]
2018 | Conference Paper | LibreCat-ID: 64378
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Rainer Michalzik, and Tobias Pusch. “Spin Lasers for Optical Data Communication.” In Semiconductor Lasers and Laser Dynamics VIII, 2018. https://doi.org/10.1117/12.2306464.
LibreCat | DOI
 
[157]
2018 | Conference Paper | LibreCat-ID: 64377
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Rainer Michalzik, and Tobias Pusch. “Electrical Birefringence Tuning of VCSELs.” In Vertical-Cavity Surface-Emitting Lasers XXII, 2018. https://doi.org/10.1117/12.2295917.
LibreCat | DOI
 
[156]
2018 | Conference Paper | LibreCat-ID: 64374
Gerhardt, Nils Christopher, Krisztian Neutsch, and Lena Göring. “Common-Path Digital Holographic Microscopy for 3D Nanoparticle Localization.” In Nanoimaging and Nanospectroscopy VI, 2018. https://doi.org/10.1117/12.2321175.
LibreCat | DOI
 
[155]
2018 | Conference Paper | LibreCat-ID: 64380
Gerhardt, Nils Christopher, Gaofeng Xu, and Igor Žutić. “Toward Ultrafast Spin Lasers?” In APS March Meeting 2018, 2018.
LibreCat
 
[154]
2018 | Journal Article | LibreCat-ID: 64370
Lenz, Marcel, Robin Krug, Nils Christopher Gerhardt, Kirsten Schmieder, Christopher Dillmann, Ralf Stroop, and H. Welp. “Automated Differentiation between Meningioma and Healthy Brain Tissue Based on Optical Coherence Tomography Ex Vivo Images Using Texture Features.” Journal of Biomedical Optics 23, no. 7 (2018): 071205. https://doi.org/10.1117/1.jbo.23.7.071205.
LibreCat | DOI
 
[153]
2018 | Conference Paper | LibreCat-ID: 64369
Besaga, Vira, Nils Christopher Gerhardt, Martin R. Hofmann, and Peter P. Maksimyak. “A Direct-View Customer-Oriented Digital Holographic Camera.” In Thirteenth International Conference on Correlation Optics, 2018. https://doi.org/10.1117/12.2304923.
LibreCat | DOI
 
[152]
2017 | Journal Article | LibreCat-ID: 64403
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. (ORCiD: 0000-0003-1265-0003) Hofmann, Tobias Pusch, Eros La Tona, and Rainer Michalzik. “Thermally Induced Birefringence Tuning of 37 GHz in VCSELs.” 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC 2017) 1 (2017): 108. https://doi.org/10.1109/cleoe-eqec.2017.8086349.
LibreCat | DOI
 
[151]
2017 | Conference Paper | LibreCat-ID: 64402
Lenz, Marcel, Robin Krug, Alexandra Gerling, Kirsten Schmieder, Martin Hofmann, Nils Christopher Gerhardt, Christopher Dillmann, and Hubert Welp. “Spectroscopic Optical Coherence Tomography for Ex Vivo Brain Tumor Analysis.” In Advanced Biomedical and Clinical Diagnostic and Surgical Guidance Systems XV, 2017. https://doi.org/10.1117/12.2252141.
LibreCat | DOI
 
[150]
2017 | Conference Paper | LibreCat-ID: 64399
Finkeldey, Markus, Lena Göring, Falk Schellenberg, Carsten Brenner, Nils Christopher Gerhardt, and Martin R. Hofmann. “Multimodal Backside Imaging of a Microcontroller Using Confocal Laser Scanning and Optical-Beam-Induced Current Imaging.” In Photonic Instrumentation Engineering IV, 2017. https://doi.org/10.1117/12.2250912.
LibreCat | DOI
 
[149]
2017 | Journal Article | LibreCat-ID: 64401
Finkeldey, Markus, Falk Schellenberg, Carsten Brenner, Martin R. Hofmann, Nils Christopher Gerhardt, and Lena Göring. “Optical Metrology for the Investigation of Buried Technical Structures.” Technisches Messen 85, no. 2 (2017): 104–10. https://doi.org/10.1515/teme-2017-0096.
LibreCat | DOI
 
[148]
2017 | Conference Paper | LibreCat-ID: 64398
Cherkashin, Maxim N., Carsten Brenner, Widodo Dwi Putro, Benjamin Döpke, Nils Christopher Gerhardt, and Martin R. Hofmann. “Linking Transducer Transfer Function with Multi-Pulse Excitation Photoacoustic Response.” In Medical Imaging 2017: Ultrasonic Imaging and Tomography, 2017. https://doi.org/10.1117/12.2254577.
LibreCat | DOI
 
[147]
2017 | Conference Paper | LibreCat-ID: 64400
Lenz, Marcel, Nils Christopher Gerhardt, Michael Prange, Martin R. Hofmann, Cristian Mazzon, Christopher Dillmann, and Hubert Welp. “Nondestructive Evaluation of Protective Coatings for the Conservation of Industrial Monuments.” In Optics for Arts, Architecture, and Archaeology VI, 2017. https://doi.org/10.1117/12.2270170.
LibreCat | DOI
 
[146]
2017 | Conference Paper | LibreCat-ID: 64397
Göring, Lena, Markus Finkeldey, Adamou Ad­in­da-Oug­ba, Nils Christopher Gerhardt, and Martin Hofmann. “Lensless Digital Holographic Microscope Using In-Line Configuration and Laser Diode Illumination.” In Practical Holography XXXI: Materials and Applications, 2017. https://doi.org/10.1117/12.2250927.
LibreCat | DOI
 
[145]
2017 | Journal Article | LibreCat-ID: 64386
Lenz, Marcel, Nils Christopher Gerhardt, Martin Hofmann, Cristian Mazzon, Christopher Dillmann, Hubert Welp, and Michael Prange. “Spectral Domain Optical Coherence Tomography for Non-Destructive Testing of Protection Coatings on Metal Substrates.” Applied Sciences 7, no. 4 (2017). https://doi.org/10.3390/app7040364.
LibreCat | DOI
 
[144]
2017 | Journal Article | LibreCat-ID: 64385
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, Rainer Michalzik, and Eros La Tona. “Monolithic Vertical-Cavity Surface-Emitting Laser with Thermally Tunable Birefringence.” Applied Physics Letters 110, no. 15 (2017). https://doi.org/10.1063/1.4980025.
LibreCat | DOI
 
[143]
2017 | Conference Paper | LibreCat-ID: 64393
Cherkashin, Maxim N., Carsten Brenner, Widodo Dwi Putro, Benjamin Döpke, Nils Christopher Gerhardt, and Martin R. Hofmann. “Dynamics of the Photoacoustic Response of Single-Element PZT Transducers to Pulse Burst Excitation.” In Photons Plus Ultrasound: Imaging and Sensing 2017, 2017. https://doi.org/10.1117/12.2253051.
LibreCat | DOI
 
[142]
2017 | Journal Article | LibreCat-ID: 64384
Finkeldey, Markus, Lena Göring, Carsten Brenner, Martin Hofmann, and Nils Christopher Gerhardt. “Depth-Filtering in Common-Path Digital Holographic Microscopy.” Optics Express 25, no. 16 (2017): 19398–407. https://doi.org/10.1364/oe.25.019398.
LibreCat | DOI
 
[141]
2017 | Conference Paper | LibreCat-ID: 64388
Finkeldey, Markus, Falk Schellenberg, Nils Christopher Gerhardt, Martin Hofmann, and Lena Göring. “Backside Imaging of a Microcontroller with Common-Path Digital Holography.” In Practical Holography XXXI: Materials and Applications, 2017. https://doi.org/10.1117/12.2250903.
LibreCat | DOI
 
[140]
2017 | Conference Paper | LibreCat-ID: 64395
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “Investigations on Polarization Oscillation Amplitudes in Spin-VCSELs.” In Vertical-Cavity Surface-Emitting Lasers XXI, 2017. https://doi.org/10.1117/12.2252490.
LibreCat | DOI
 
[139]
2017 | Journal Article | LibreCat-ID: 64392
Finkeldey, Markus, Carsten (ORCiD: 0000-0002-8764-9261) Brenner, Nils Christopher Gerhardt, Martin R. Hofmann, and Lena Göring. “Digital Holographic Microscopy of Buried Specimen Using a Common-Path Reflective Setup.” DGaO-Proceedings 118 (2017).
LibreCat
 
[138]
2017 | Conference Paper | LibreCat-ID: 64391
Besaga, Vira, Nils Christopher Gerhardt, Martin R. Hofmann, and Peter P. Maksimyak. “Common-Path Holographic Objective for Conventional Photographic Camera.” In Novel Optical Systems Design and Optimization XX, 2017. https://doi.org/10.1117/12.2273890.
LibreCat | DOI
 
[137]
2017 | Conference Paper | LibreCat-ID: 64394
Lindemann, Markus, Martin R. Hofmann, Nils Christopher Gerhardt, Tobias Pusch, and Rainer Michalzik. “High-Frequency Polarization Dynamics in Spin-Lasers - Pushing the Limits.” In Spintronics X, 2017. https://doi.org/10.1117/12.2272972.
LibreCat | DOI
 
[136]
2016 | Journal Article | LibreCat-ID: 59690
Lindemann, Markus, Tobias Pusch, Rainer Michalzik, Nils Christopher Gerhardt, and Martin R. Hofmann. “Frequency Tuning of Polarization Oscillations: Toward High-Speed Spin-Lasers.” Applied Physics Letters 108, no. 4 (2016). https://doi.org/10.1063/1.4940713.
LibreCat | DOI
 
[135]
2016 | Preprint | LibreCat-ID: 64425
Schellenberg, Falk, Markus Finkeldey, Nils Christopher Gerhardt, Martin R. Hofmann, Amir Moradi, and Christof Paar. “Large Laser Spots and Fault Sensitivity Analysis,” 2016.
LibreCat
 
[134]
2016 | Journal Article | LibreCat-ID: 64426
Lenz, Marcel, Robin Krug, Nils Christopher Gerhardt, Kirsten Schmieder, Martin Hofmann, Christopher Dillmann, and Hubert Welp. “Local Bi­na­ry Pat­terns for Dif­fe­ren­tia­ti­on of Brain Tis­sue Types In­op­ti­cal Co­he­rence To­mo­gra­phy Ima­ges.” Biomedical Engineering 61, no. Suppl. 1 (2016).
LibreCat
 
[133]
2016 | Conference Paper | LibreCat-ID: 64424
Schellenberg, Falk, Markus Finkeldey, Nils Christopher Gerhardt, Martin R. Hofmann, Amir Moradi, and Christof Paar. “Large Laser Spots and Fault Sensitivity Analysis.” In 2016 IEEE International Symposium on Hardware Oriented Security and Trust (HOST 2016), 203–8, 2016. https://doi.org/10.1109/hst.2016.7495583.
LibreCat | DOI
 
[132]
2016 | Conference Paper | LibreCat-ID: 64420
Finkeldey, Markus, Falk Schellenberg, Nils Christopher Gerhardt, Christof Paar, and Martin Hofmann. “Common-Path Depth-Filtered Digital Holography for High Resolution Imaging of Buried Semiconductor Structures.” In Practical Holography XXX: Materials and Applications, 2016. https://doi.org/10.1117/12.2212454.
LibreCat | DOI
 
[131]
2016 | Conference Paper | LibreCat-ID: 64423
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “Influence of Birefringence Splitting on Ultrafast Polarization Oscillations in VCSELs.” In Vertical-Cavity Surface-Emitting Lasers XX, 2016. https://doi.org/10.1117/12.2212413.
LibreCat | DOI
 
[130]
2016 | Conference Paper | LibreCat-ID: 64427
Gerhardt, Nils Christopher, Jr. Faria, Paulo E., Gaofeng Xu, Jeongsu Lee, Guilherme M. Sipahi, and Igor Žutić. “Microscopic Description of a Spin Laser.” In APS March Meeting 2016, 2016.
LibreCat
 
[129]
2016 | Conference Paper | LibreCat-ID: 64422
Lindemann, Markus, Martin R. Hofmann, Nils Christopher Gerhardt, Tobias Pusch, and Rainer Michalzik. “Frequency Tuning of Polarization Oscillations in Spin-Polarized Vertical-Cavity Surface-Emitting Lasers.” In Semiconductor Lasers and Laser Dynamics VII, 2016. https://doi.org/10.1117/12.2229358.
LibreCat | DOI
 
[128]
2016 | Conference Paper | LibreCat-ID: 64419
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “Birefringent Vertical Cavity Surface-Emitting Lasers - toward High-Speed Spin-Lasers.” In Semiconductor Lasers and Laser Dynamics VII, 2016. https://doi.org/10.1117/12.2229356.
LibreCat | DOI
 
[127]
2016 | Conference Paper | LibreCat-ID: 64415
Brenner, Carsten, Lena Göring, Benjamin Döpke, Maxim N. Cherkashin, Nils Christopher Gerhardt, and Martin R. Hofmann. “Dynamics of Double-Pulse Photoacoustic Excitation.” In Photons Plus Ultrasound: Imaging and Sensing 2016, 2016. https://doi.org/10.1117/12.2213476.
LibreCat | DOI
 
[126]
2016 | Journal Article | LibreCat-ID: 64421
Göring, Lena, Markus Finkeldey, Nils Christopher Gerhardt, and Martin R. Hofmann. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen.” Adaptive Optics: Analysis, Methods & Systems, 2016. https://doi.org/10.1364/3d.2016.jw4a.40.
LibreCat | DOI
 
[125]
2016 | Conference Paper | LibreCat-ID: 64418
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Marwan Bou Sanayeh, Rainer Mich­al­zik, and Tobias Pusch. “Birefringence Tuning of VCSELs.” In Semiconductor Lasers and Laser Dynamics VII, 2016. https://doi.org/10.1117/12.2228091.
LibreCat | DOI
 
[124]
2016 | Conference Paper | LibreCat-ID: 64411
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Göring. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016. https://doi.org/10.1364/aoms.2016.jw4a.40.
LibreCat | DOI
 
[123]
2016 | Conference Paper | LibreCat-ID: 64413
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Goring. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016. https://doi.org/10.1364/cosi.2016.jw4a.40.
LibreCat | DOI
 
[122]
2016 | Conference Paper | LibreCat-ID: 64417
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Goring. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016.
LibreCat
 
[121]
2016 | Conference Paper | LibreCat-ID: 64416
Schellenberg, Falk, Markus Finkeldey, Bastian Richter, Nils Christopher Gerhardt, Martin Hofmann, Christof Paar, and Maximilian Schapers. “On the Complexity Reduction of Laser Fault Injection Campaigns Using OBIC Measurements.” In 2015 Workshop on Fault Diagnosis and Tolerance in Cryptography - FDTC 2015, 14–27, 2016. https://doi.org/10.1109/fdtc.2015.10.
LibreCat | DOI
 
[120]
2016 | Conference Paper | LibreCat-ID: 64407
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “High-Frequency Operation of Spin Vertical-Cavity Surface-Emitting Lasers - towards 100 GHz.” In Spintronics IX, 2016. https://doi.org/10.1117/12.2237163.
LibreCat | DOI
 
[119]
2016 | Journal Article | LibreCat-ID: 64406
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “Frequency Tuning of Polarization Oscillations in Spin-Lasers.” Spintronics IX, 2016. https://doi.org/10.1117/12.2237566.
LibreCat | DOI
 
[118]
2016 | Conference Paper | LibreCat-ID: 64408
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Göring. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016. https://doi.org/10.1364/aio.2016.jw4a.40.
LibreCat | DOI
 
[117]
2016 | Conference Paper | LibreCat-ID: 64409
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Göring. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016. https://doi.org/10.1364/math.2016.jw4a.40.
LibreCat | DOI
 
[116]
2016 | Conference Paper | LibreCat-ID: 64410
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Go. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016. https://doi.org/10.1364/isa.2016.jw4a.40.
LibreCat | DOI
 
[115]
2016 | Conference Paper | LibreCat-ID: 64412
Gerhardt, Nils Christopher, Martin R. Hofmann, Markus Finkeldey, and Lena Göring. “Common-Path Digital Holography Microscopy of Buried Semiconductor Specimen,” 2016.
LibreCat
 
[114]
2015 | Journal Article | LibreCat-ID: 59691
Faria Junior, Paulo E., Gaofeng Xu, Jeongsu Lee, Nils Christopher Gerhardt, Guilherme M. Sipahi, and Igor Žutić. “Toward High-Frequency Operation of Spin Lasers.” Physical Review B 92, no. 7 (2015). https://doi.org/10.1103/physrevb.92.075311.
LibreCat | DOI
 
[113]
2015 | Journal Article | LibreCat-ID: 59693
Faria Junior, Paulo E., Gaofeng Xu, Jeongsu Lee, Nils Christopher Gerhardt, Guilherme M. Sipahi, and Igor Žutić. “Toward High-Frequency Operation of Spin Lasers.” Physical Review B 92, no. 7 (2015). https://doi.org/10.1103/physrevb.92.075311.
LibreCat | DOI
 
[112]
2015 | Conference Paper | LibreCat-ID: 64444
Lindemann, Markus, Nils Christopher Gerhardt, Martin Hofmann, Tobias Pusch, and Rainer Michalzik. “Tu­ning the Fre­quen­cy of Po­la­riza­t­i­on Oscil­la­ti­ons in Spin VC­SELs by Me­cha­ni­cal Strain In­duc­tion in GHz-Ran­ge.” In The European Conference on Lasers and Electro-Optics 2015, 2015.
LibreCat
 
[111]
2015 | Conference Paper | LibreCat-ID: 64441
Lindemann, Markus, Nils Christopher Gerhardt, Martin Hofmann, T. Pusch, and Rainer Michalzik. “Increasing the Birefringence of VCSELs beyond 250 GHz.” In The European Conference on Lasers and Electro-Optics 2015, 2015.
LibreCat
 
[110]
2015 | Preprint | LibreCat-ID: 64442
Schellenberg, Falk, Markus Finkeldey, Bastian Richter, Nils Christopher Gerhardt, Martin R. Hofmann, Christof Paar, and Maximilian Schäpers. “On the Complexity Reduction of Laser Fault Injection Campaigns Using OBIC Measurements,” 2015.
LibreCat
 
[109]
2015 | Journal Article | LibreCat-ID: 64430
Ad­in­da-Oug­ba, Adamou, Nektarios Koukourakis, Nils Christopher Gerhardt, and Martin Hofmann. “Simple Concept for a Wide-Field Lensless Digital Holographic Microscope Using a Laser Diode.” Current Directions in Biomedical Engineering 1, no. 1 (2015): 261–64. https://doi.org/10.1515/cdbme-2015-0065.
LibreCat | DOI
 
[108]
2015 | Conference Paper | LibreCat-ID: 64432
Cherkashin, Maxim N., Carsten Brenner, Lena Schnitzler, Benjamin Döpke, Nils Christopher Gerhardt, and Martin Hofmann. “Laser-Diode-Based Photoacoustic Setup to Analyze Grüneisen Relaxation-Effect Induced Signal Enhancement.” In Opto-Acoustic Methods and Applications in Biophotonics II, 2015. https://doi.org/10.1117/12.2183957.
LibreCat | DOI
 
[107]
2015 | Conference Paper | LibreCat-ID: 64436
Lindemann, Markus, Henning Höpfner, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “Ultrafast Polarization Dynamics with Controlled Polarization Oscillations in Vertical-Cavity Surface-Emitting Lasers.” In Vertical-Cavity Surface-Emitting Lasers XIX, 1–7, 2015. https://doi.org/10.1117/12.2076920.
LibreCat | DOI
 
[106]
2015 | Conference Paper | LibreCat-ID: 64443
Lindemann, Markus, Henning Höpfner, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias Pusch, and Rainer Michalzik. “Towards High Frequency Operation of Polarization Oscillations in Spin Vertical-Cavity Surface-Emitting Lasers.” In Spintronics VIII, 2015. https://doi.org/10.1117/12.2197969.
LibreCat | DOI
 
[105]
2015 | Journal Article | LibreCat-ID: 64435
Lindemann, Markus, Henning Höpfner, Nils Christopher Gerhardt, Martin Hofmann, Tobias Pusch, and Rainer Michalzik. “Controlling the Frequency of Ultra-Fast Polarization Oscillations in Spin-VCSELs.” 79. Jahrestagung Der DPG Und DPG-Frühjahrstagung, 2015.
LibreCat
 
[104]
2015 | Conference Paper | LibreCat-ID: 64440
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, T. Pusch, and R. Michalzik. “Tuning the Frequency of Polarization Oscillations in Spin-VCSELs by Mechanical Strain Induction,” 2015.
LibreCat
 
[103]
2015 | Conference Paper | LibreCat-ID: 64438
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. (ORCiD: 0000-0003-1265-0003) Hofmann, T. Pusch, and R. Michalzik. “Increasing the Birefringence of VCSELs beyond 250 GHz,” 2015.
LibreCat
 
[102]
2015 | Conference Paper | LibreCat-ID: 64437
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, T. Pusch, and R. Michalzik. “Increasing the Birefringence of VCSELs beyond 250 GHz,” 2015.
LibreCat
 
[101]
2015 | Conference Paper | LibreCat-ID: 64429
Ad­in­da-Oug­ba, Adamou, Nektarios Koukourakis, Felix Mitschker, Nils Christopher Gerhardt, Martin Hofmann, and Behzad Kabir. “Compact Low-Cost Lensless Digital Holographic Microscope for Topographic Measurements of Microstructures in Reflection Geometry.” In Optical Systems Design 2015, 1–8, 2015. https://doi.org/10.1117/12.2191073.
LibreCat | DOI
 
[100]
2015 | Conference Paper | LibreCat-ID: 64433
Ad­in­da-Oug­ba, Adamou, Nektarios Koukourakis, Aissam Essaidi, Nils Christopher Gerhardt, and Martin Hofmann. “Quantitative Phase Imaging by Wide Field Lensless Digital Holographic Microscope.” In Optical Methods for Inspection, Characterization, and Imaging of Biomaterials II, 952903, 2015. https://doi.org/10.1117/12.2184471.
LibreCat | DOI
 
[99]
2015 | Journal Article | LibreCat-ID: 64428
Lindemann, Markus, Nils Christopher Gerhardt, Martin Hofmann, T. Pusch, and Rainer Michalzik. “Vertical-Cavity Surface-Emitting Lasers with Birefringence Splitting above 250 GHz.” Electronics Letters 51, no. 20 (2015): 1600–1601. https://doi.org/10.1049/el.2015.2149.
LibreCat | DOI
 
[98]
2015 | Conference Paper | LibreCat-ID: 64431
Lindemann, Markus, Henning Höpfner, Nils Christopher Gerhardt, Martin Hofmann, Tobias Pusch, and Rainer Michalzik. “Controlled Switching and Frequency Tuning of Polarization Oscillations in Vertical-Cavity Surface-Emitting Lasers.” In Spintronics VIII, 1–5, 2015. https://doi.org/10.1117/12.2197970.
LibreCat | DOI
 
[97]
2015 | Conference Paper | LibreCat-ID: 64439
Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, T. Pusch, and R. Michalzik. “Tuning the Frequency of Polarization Oscillations in Spin-VCSELs by Mechanical Strain Induction,” 2015.
LibreCat
 
[96]
2014 | Conference Paper | LibreCat-ID: 64453
Jaedicke, Volker, Semih Agcaer, Nils Christopher Gerhardt, Martin Hofmann, Francisco E. Robles, Marian Steinert, David Jones, Sebastian Goebel, and Hubert Welp. “Performance Comparison of Different Metrics for Spectroscopic Optical Coherence Tomography.” In Biomedical Applications of Light Scattering VIII, 1–10, 2014. https://doi.org/10.1117/12.2038891.
LibreCat | DOI
 
[95]
2014 | Conference Paper | LibreCat-ID: 64451
Koukourakis, Nektarios, Markus Finkeldey, Nils Christopher Gerhardt, Martin Hofmann, Moritz Stürmer, Ulrike Wallrabe, Jürgen Czarske, and Andreas Fischer. “Effects of Axial Scanning in Confocal Microscopy Employing Adaptive Lenses (CAL).” In Optical Micro- and Nanometrology V, 2014. https://doi.org/10.1117/12.2052152.
LibreCat | DOI
 
[94]
2014 | Journal Article | LibreCat-ID: 64448
Koukourakis, Nektarios, Markus Finkeldey, Nils Christopher Gerhardt, Martin R. Hofmann, Andreas Fischer, Moritz Stürmer, Christoph Leithold, Ulrike Wallrabe, and Jürgen W. Czarske. “Axial Scanning in Confocal Microscopy Employing Adaptive Lenses (CAL).” Optics Express 22, no. 5 (2014): 6025–39. https://doi.org/10.1364/oe.22.006025.
LibreCat | DOI
 
[93]
2014 | Journal Article | LibreCat-ID: 64450
Höpfner, Henning, Markus Lindemann, Nils Christopher Gerhardt, and Martin Hofmann. “Controlled Switching of Ultrafast Circular Polarization Oscillations in Spin-Polarized Vertical-Cavity Surface-Emitting Lasers.” Applied Physics Letters 104, no. 2 (2014): 1–5. https://doi.org/10.1063/1.4862330.
LibreCat | DOI
 
[92]
2014 | Journal Article | LibreCat-ID: 64452
Koukourakis, Nektarios, Nils Christopher Gerhardt, Martin R. Hofmann, Volker Jädicke, Sebastian Göbel, and Hubert Welp. “Multiwavelength Phase Unwrapping and Aberration Correction Using Depth Filtered Digital Holography.” Optics Letters 39, no. 14 (2014): 4160–63. https://doi.org/10.1364/ol.39.004160.
LibreCat | DOI
 
[91]
2014 | Conference Paper | LibreCat-ID: 64449
Höpfner, Henning, Markus Lindemann, Nils Christopher Gerhardt, and Martin Hofmann. “Coherent Switching of Polarization Oscillations in Vertical-Cavity Surface-Emitting Lasers.” In Vertical-Cavity Surface-Emitting Lasers XVIII, 9001–15, 2014. https://doi.org/10.1117/12.2039196.
LibreCat | DOI
 
[90]
2014 | Conference Paper | LibreCat-ID: 64447
Höpfner, Henning, Markus Lindemann, Nils Christopher Gerhardt, and Martin R. Hofmann. “Spin-Controlled Ultrafast Vertical-Cavity Surface-Emitting Lasers.” In Semiconductor Lasers and Laser Dynamics VI, 1–6, 2014. https://doi.org/10.1117/12.2049684.
LibreCat | DOI
 
[89]
2014 | Conference Paper | LibreCat-ID: 64445
Gerhardt, Nils Christopher, Henning Höpfner, Markus Lindemann, and Martin R. Hofmann. “Polarization Dynamics in Spin-Polarized Vertical-Cavity Surface-Emitting Lasers.” In Spintronics VII, 1–10, 2014. https://doi.org/10.1117/12.2063723.
LibreCat | DOI
 
[88]
2014 | Journal Article | LibreCat-ID: 64446
Koukourakis, Nektarios, Markus Finkeldey, Nils Christopher Gerhardt, Martin Hofmann, M. Stürmer, C. Leithold, U. Wallrabe, and J.W. Czarske. “Employing Electrically Tunable Lenses in Confocal Microscopy for Axial Scanning.” International C for Optics. Congress , 2014.
LibreCat
 
[87]
2013 | Journal Article | LibreCat-ID: 64466
Höpfner, Henning, Arne Ludwig, Astrid Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin Hofmann, et al. “Spin Relaxation in Spin Light-Emitting Diodes - Effects of Magnetic Field and Temperature.” Ultrafast Phenomena and Nanophotonics XVII, 2013, 86230A – 1. https://doi.org/10.1117/12.2001511.
LibreCat | DOI
 
[86]
2013 | Conference Paper | LibreCat-ID: 64460
Finkeldey, Markus, Nektarios Koukourakis, Nils Christopher Gerhardt, Martin R. Hofmann, Martin Zimprich, Kerstin Volz, and Wolfgang Stolz. “Optical Gain and Lasing in GaNAsP/BGa(As)P Heterostructures Grown on (001) Silicon Substrate.” In DPG-Frühjahrstagung (DPG Spring Meeting) of the Condensed Matter Section with Its Divisions Biological Physics, Chemical and Polymer Physics, Crystallography, Dielectric Solids, Dynamics and Statistical Physics, Low Temperature Physics, Magnetism, Metal and Material Physics, Physics of Socio-Economic Systems, Semiconductor Physics, Surface Science, Thin Films, Vacuum Science and Technology Together with the Divions Microprobes, and Radiation and Medical Physics as Well as the Working Groups Industry and Business, and “Young DPG,” 2013.
LibreCat
 
[85]
2013 | Conference Paper | LibreCat-ID: 64464
Höpfner, Henning, Arne Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin R. Hofmann, Carola Fritsche, Frank Stromberg, Heiko Wende, and Werner Keune. “Spin Injection and Spin Relaxation: Magnetic Field Effects.” In DPG-Frühjahrstagung (DPG Spring Meeting) of the Condensed Matter Section with Its Divisions Biological Physics, Chemical and Polymer Physics, Crystallography, Dielectric Solids, Dynamics and Statistical Physics, Low Temperature Physics, Magnetism, Metal and Material Physics, Physics of Socio-Economic Systems, Semiconductor Physics, Surface Science, Thin Films, Vacuum Science and Technology Together with the Divions Microprobes, and Radiation and Medical Physics as Well as the Working Groups Industry and Business, and “Young DPG,” 2013.
LibreCat
 
[84]
2013 | Conference Paper | LibreCat-ID: 64456
Gerhardt, Nils Christopher, Martin R. Hofmann, Volker Jaedicke, Semih Aǧcaer, Sebastian Goebel, and Hubert Welp. “Spectral Analysis and Spectroscopic Metrics in Spectroscopic Optical Coherence Tomography,” 2013. https://doi.org/10.1364/fio.2013.fw4a.1.
LibreCat | DOI
 
[83]
2013 | Conference Paper | LibreCat-ID: 64459
Gerhardt, Nils Christopher, Nektarios Koukourakis, Markus Finkeldey, Martin Hofmann, Bernadette Kunert, Martin Zimprich, Kerstin Volz, et al. “Non-Exponential Photoluminescence Transients in GaNAsP Lattice Matched to (001) Silicon Substrate.” In DPG-Frühjahrstagung (DPG Spring Meeting) of the Condensed Matter Section with Its Divisions Biological Physics, Chemical and Polymer Physics, Crystallography, Dielectric Solids, Dynamics and Statistical Physics, Low Temperature Physics, Magnetism, Metal and Material Physics, Physics of Socio-Economic Systems, Semiconductor Physics, Surface Science, Thin Films, Vacuum Science and Technology Together with the Divions Microprobes, and Radiation and Medical Physics as Well as the Working Groups Industry and Business, and “Young DPG,” 2013.
LibreCat
 
[82]
2013 | Journal Article | LibreCat-ID: 64467
Höpfner, Henning, Arne Ludwig, Astrid Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin Hofmann, et al. “Spin Relaxation Length in Quantum Dot Spin LEDs.” Physica Status Solidi 10, no. 9 (2013): 1214–17. https://doi.org/10.1002/pssc.201200689.
LibreCat | DOI
 
[81]
2013 | Conference Paper | LibreCat-ID: 64468
Gerhardt, Nils Christopher, Henning Höpfner, Markus Lindemann, Mingyuan Li, Hendrik Jähme, Martin Hofmann, and Thorsten Ackemann. “Ultrafast Spin-Polarized Vertical-Cavity Surface-Emitting Lasers.” In Spintronics VI, 8313–80, 2013. https://doi.org/10.1117/12.2022720.
LibreCat | DOI
 
[80]
2013 | Journal Article | LibreCat-ID: 64455
Koukourakis, Nektarios, Nils Christopher Gerhardt, Martin Hofmann, Bernardette Kunert, Sven Liebich, Martin Zimprich, Kerstin Volz, et al. “Nonexponential Photoluminescence Transients in a Ga(NAsP) Lattice Matched to a (001) Silicon Substrate.” Physical Review 87, no. 3 (2013). https://doi.org/10.1103/physrevb.87.035303.
LibreCat | DOI
 
[79]
2013 | Journal Article | LibreCat-ID: 64457
Jaedicke, Volker, Nils Christopher Gerhardt, Martin Hofmann, Semih Agcaer, Francisco E. Robles, Marian Steinert, David Jones, Sebastian Goebel, and Hubert Welp. “Comparison of Different Metrics for Analysis and Visualization in Spectroscopic Optical Coherence Tomography.” Biomedical Optics Express 4, no. 12 (2013): 2945–61. https://doi.org/10.1364/boe.4.002945.
LibreCat | DOI
 
[78]
2013 | Conference Paper | LibreCat-ID: 64461
Jaedicke, Volker, Nektarios Koukourakis, Adamou Ad­in­da-Oug­ba, Nils Christopher Gerhardt, Martin Hofmann, Sebastian Goebel, Helge Wiethoff, et al. “Quantitative Phase Analysis through Scattering Media by Depth-Filtered Digital Holography.” In Three-Dimensional and Multidimensional Microscopy, 85891J-85891J – 8, 2013. https://doi.org/10.1117/12.2001159.
LibreCat | DOI
 
[77]
2013 | Journal Article | LibreCat-ID: 64458
Jaedicke, Volker, Nils Christopher Gerhardt, Martin Hofmann, Semih Agcaer, Sebastian Goebel, and Hubert Welp. “Contrast Enhancement Methods in Optical Coherence Tomography Using Spectral Features.” Biomedical Engineering 58, no. Suppl. 1 (2013): 1–2. https://doi.org/10.1515/bmt-2013-4269.
LibreCat | DOI
 
[76]
2013 | Book Chapter | LibreCat-ID: 64462
Ludwig, Arne, Henning Höpfner, Nils Christopher Gerhardt, Jürgen König, Martin R. Hofmann, Andreas Wieck, Björn Sothmann, Jörg Nannen, Tilmar Kümmell, and Gerd Bacher. “Quantum Dot Spintronics - Fundamentals and Applications.” In Magnetic Nanostructures, 235–68, 2013. https://doi.org/10.1007/978-3-642-32042-2_7.
LibreCat | DOI
 
[75]
2013 | Dissertation | LibreCat-ID: 64454
Gerhardt, Nils Christopher, and Fakultät für Elektrotechnik und Informationstechnik. “More than Moore” - Novel Photonic Concepts for Information Technology, 2013.
LibreCat
 
[74]
2013 | Conference Paper | LibreCat-ID: 64465
Höpfner, Henning, Arne Ludwig, Astrid Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin Hofmann, et al. “Spin Injection, Transport, and Relaxation in Spin Light-Emitting Diodes - Magnetic Field Effects.” In Spintronics VI, 8813–43, 2013. https://doi.org/10.1117/12.2023324.
LibreCat | DOI
 
[73]
2012 | Conference Paper | LibreCat-ID: 64476
Koukourakis, Nektarios, Dominic Funke, Nils Christopher Gerhardt, Martin R. Hofmann, Max Klimasch, Sven Liebich, Martin Zimprich, et al. “Photoluminescence and Optical Gain of Ga(NAsP) Heterostructures Pseudomorphically Grown on Silicon (001) Substrate.” In Silicon Photonics VII, 1–6, 2012. https://doi.org/10.1117/12.907677.
LibreCat | DOI
 
[72]
2012 | Conference Paper | LibreCat-ID: 64477
Höpfner, Henning, Mingyuan Li, Arne Ludwig, Astrid Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, et al. “Room Temperature Spin Relaxation in Quantum Dot Based Spin-Optoelectronic Devices.” In Ultrafast Phenomena and Nanophotonics XVI, 1–7, 2012. https://doi.org/10.1117/12.907821.
LibreCat | DOI
 
[71]
2012 | Journal Article | LibreCat-ID: 64485
Koukourakis, Nektarios, Nils Christopher Gerhardt, Martin R. Hofmann, Max Klimasch, Sven Liebich, Daniel Trusheim, Martin Zimprich, Kerstin Volz, Wolfgang Stolz, and Bernadette Kunert. “Time-Resolved Photoluminescence and Optical Gain in Ga(NAsP) Pseudomorphically Grown on Silicon.” 76th Jahrestagung Der DPG (76th Annual Conference of the DPG) and DPG-Frühjahrstagung (Spring Meeting) of the Condensed Matter Section (SKM) with Further DPG Divisions: Environmental Physics, Microprobes, Radiation and Medical Physics, as Well as the DPG Working Groups: Energy, Equal Opportunities, Industry and Business, Information, Philosophy of Physics, Physics and Disarmament, Young DPG, 2012.
LibreCat
 
[70]
2012 | Journal Article | LibreCat-ID: 64483
Höpfner, Henning, Arne Ludwig, Astrid Ebbing, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin R. Hofmann, et al. “Temperature Dependence of the Spin Relaxation Length in Spin Quantum Dot LEDs.” 76th Jahrestagung Der DPG (76th Annual Conference of the DPG) and DPG-Frühjahrstagung (Spring Meeting) of the Condensed Matter Section (SKM) with Further DPG Divisions: Environmental Physics, Microprobes, Radiation and Medical Physics, as Well as the DPG Working Groups: Energy, Equal Opportunities, Industry and Business, Information, Philosophy of Physics, Physics and Disarmament, Young DPG, 2012.
LibreCat
 
[69]
2012 | Journal Article | LibreCat-ID: 64482
Jaedicke, Volker, Semih Agcaer, Nils Christopher Gerhardt, Martin Hofmann, Sebastian Goebel, Helge Wiethoff, and Hubert Welp. “System Development for Spectroscopic Optical Coherence Tomography.” Biomedical Engineering 57, no. Heft SI-1 Track-B (2012): 327. https://doi.org/10.1515/bmt-2012-4245.
LibreCat | DOI
 
[68]
2012 | Journal Article | LibreCat-ID: 64481
Gerhardt, Nils Christopher, and Martin Hofmann. “Spin-Controlled Vertical-Cavity Surface-Emitting Lasers.” Advances in Optical Technologies, 2012, 268949-1-268949–15. https://doi.org/10.1155/2012/268949.
LibreCat | DOI
 
[67]
2012 | Conference Paper | LibreCat-ID: 64470
Li, Mingyuan, Nils Christopher Gerhardt, Martin Hofmann, and Thorsten Ackemann. “Analysis of Birefringence Controlled Ultrafast Polarization Oscillations in Spin Vertical-Cavity Surface-Emitting Lasers.” In EOS Annual Meeting 2012 (EOSAM 2012), 104–7, 2012.
LibreCat
 
[66]
2012 | Journal Article | LibreCat-ID: 64480
Höpfner, Henning, Arne Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin R. Hofmann, Carola Fritsche, Frank Stromberg, Heiko Wende, and Werner Keune. “Spin Relaxation Dynamics in Spin-LEDs.” 76th Jahrestagung Der DPG (76th Annual Conference of the DPG) and DPG-Frühjahrstagung (Spring Meeting) of the Condensed Matter Section (SKM) with Further DPG Divisions: Environmental Physics, Microprobes, Radiation and Medical Physics, as Well as the DPG Working Groups: Energy, Equal Opportunities, Industry and Business, Information, Philosophy of Physics, Physics and Disarmament, Young DPG, 2012.
LibreCat
 
[65]
2012 | Journal Article | LibreCat-ID: 64472
Soldat, Henning, Mingyuan Li, Nils Christopher Gerhardt, Martin Hofmann, Arne Ludwig, Astrid Ebbing, Dirk Reuter, et al. “Erratum: ‘Room Temperature Spin Relaxation Length in Spin Light-Emitting Diodes’ - [Appl. Phys. Lett. 99, 051102 (2011)].” Applied Physics Letters 100, no. 26 (2012): 269902–1. https://doi.org/10.1063/1.4728990.
LibreCat | DOI
 
[64]
2012 | Journal Article | LibreCat-ID: 64473
Koukourakis, Nektarios, Nils Christopher Gerhardt, Martin Hofmann, Christina Bückers, Dominic A. Funke, Sven Liebich, Sati Nath Chatterjee, et al. “High Room-Temperature Optical Gain in Ga(NAsP)/Si Heterostructures.” Applied Physics Letters 100, no. 9 (2012): 092107-1-092107–3. https://doi.org/10.1063/1.3690886.
LibreCat | DOI
 
[63]
2012 | Journal Article | LibreCat-ID: 64474
Höpfner, Henning, Arne Ludwig, Astrid Ludwig, Dirk Reuter, Andreas Wieck, Nils Christopher Gerhardt, Martin Hofmann, et al. “Magnetic Field Dependence of the Spin Relaxation Length in Spin Light-Emitting Diodes.” Applied Physics Letters 101, no. 11 (2012): 112402-1-112402–4. https://doi.org/10.1063/1.4752162.
LibreCat | DOI
 
[62]
2012 | Journal Article | LibreCat-ID: 64471
Koukourakis, Nektarios, Volker Jaedicke, Adamou Ad­in­da-Oug­ba, Nils Christopher Gerhardt, Martin Hofmann, Sebastian Goebel, Helge Wiethoff, and Henning Höpfner. “Depth-Filtered Digital Holography.” Optics Express 20, no. 20 (2012): 22636–48. https://doi.org/10.1364/oe.20.022636.
LibreCat | DOI
 
[61]
2012 | Conference Paper | LibreCat-ID: 64478
Jaedicke, Volker, Semih Agcaer, Christoph Tobias Kasseck, Nils Christopher Gerhardt, Martin Hofmann, Sebastian Goebel, and Hubert Welp. “Signal Processing for Spectroscopic Optical Coherence Tomography.” In Proceedings of the 7th International Workshop on Biosignal Interpretation (BSI2012), 224–27, 2012.
LibreCat
 
[60]
2012 | Journal Article | LibreCat-ID: 64475
Beckmann, Martin, Claus-Stefan Friedrich, Martin Mienkina, Nils Christopher Gerhardt, Martin Hofmann, and Georg Schmitz. “Multispectral Photoacoustic Coded Excitation Using Pseudorandom Codes - 82231E.” Photons plus Ultrasound, 2012, 82231E-1-82231E – 8. https://doi.org/10.1117/12.907427.
LibreCat | DOI
 
[59]
2011 | Conference Paper | LibreCat-ID: 64497
Gerhardt, Nils Christopher, Nektarios Koukourakis, Dominic Funke, Martin R. Hofmann, Max Klimasch, Bernardette Kunert, Sven Liebich, et al. “Time-Resolved Photoluminescence and Optical Gain of Ga(NAsP) Heterostructures Pseudomorphically Grown on Silicon (001) Substrate.” In 2011 13th International Conference on Transparent Optical Networks (ICTON 2011), 1:111–14, 2011. https://doi.org/10.1109/icton.2011.5970794.
LibreCat | DOI
 
[58]
2011 | Journal Article | LibreCat-ID: 64492
Li, Mingyuan, Hendrik Jähme, Henning Soldat, Nils Christopher Gerhardt, Martin Hofmann, and Thorsten Ackemann. “Birefringence and Spin Controlled Ultrafast Polarization Oscillations in Vertical-Cavity Surface-Emitting Lasers.” 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO Europe/EQEC 2011), 2011, 109. https://doi.org/10.1109/cleoe.2011.5942549.
LibreCat | DOI
 
[57]
2011 | Conference Paper | LibreCat-ID: 64494
Beckmann, Martin, Martin Mienkina, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin Hofmann, and Georg Schmitz. “Photoacoustic Coded Excitation Using Periodically Perfect Sequences.” In 2011 IEEE International Ultrasonics Symposium (IUS 2011), 2:1179–82, 2011. https://doi.org/10.1109/ultsym.2011.0290.
LibreCat | DOI
 
[56]
2011 | Conference Paper | LibreCat-ID: 64486
Gerhardt, Nils Christopher, Martin R. Hofmann, Nektarios Koukourakis, Dominic A. Funke, B. Kunert, S. Liebich, D. Trusheim, et al. “Modal Gain and Time-Resolved Photoluminescence of Ga(NAsP) Heterostructures Pseudomorphically Grown on Silicon (001) Substrate,” 2011.
LibreCat
 
[55]
2011 | Conference Paper | LibreCat-ID: 64487
Gerhardt, Nils Christopher, Martin R. Hofmann, Nektarios Koukourakis, Dominic A. Funke, B. Kunert, S. Liebich, D. Trusheim, et al. “Modal Gain and Time-Resolved Photoluminescence of Ga(NAsP) Heterostructures Pseudomorphically Grown on Silicon (001) Substrate,” 2011.
LibreCat
 
[54]
2011 | Conference Paper | LibreCat-ID: 64496
Friedrich, Claus-Stefan, Martin Mienkina, Nils Christopher Gerhardt, Martin Beckmann, Georg Schmitz, Martin R. Hofmann, Carsten Brenner, Manfred Jörger, and Andreas Strauß. “Quantitative Photoacoustic Blood Oxygenation Measurement of Whole Porcine Blood Samples Using a Multi-Wavelength Semiconductor Laser System.” In Diffuse Optical Imaging III, 1–9, 2011. https://doi.org/10.1117/12.889682.
LibreCat | DOI
 
[53]
2011 | Journal Article | LibreCat-ID: 64495
Koukourakis, Nektarios, Mingyuan Li, Ryan Yiu Wai Lai, Carsten Brenner, Nils Christopher Gerhardt, Martin Hofmann, Tarek Abdelwahab, Henning Höpfner, and Emmanouil Darakis. “Photorefractive Two-Wave Mixing for Image Amplification in Digital Holography.” Optics Express 19, no. 22 (2011): 22004–23. https://doi.org/10.1364/oe.19.022004.
LibreCat | DOI
 
[52]
2011 | Conference Paper | LibreCat-ID: 64493
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin Hofmann, Georg Schmitz, and Alexander Eder. “Ex­pe­ri­men­tal Eva­lua­ti­on of Mul­tis­pec­tral Pho­toa­coustic Coded Ex­ci­ta­ti­on Using Or­tho­go­nal Uni­po­lar Golay Codes.” In 442. Wilhelm Und Else Heraeus-Seminar “Molecular Imaging” in Bad Honnef, October 5th - 8th, 2009, 2011.
LibreCat
 
[51]
2011 | Conference Paper | LibreCat-ID: 64488
Gerhardt, Nils Christopher, Martin R. Hofmann, Nektarios Koukourakis, Dominic A. Funke, B. Kunert, S. Liebich, D. Trusheim, et al. “Modal Gain and Time-Resolved Photoluminescence of Ga(NAsP) Heterostructures Pseudomorphically Grown on Silicon (001) Substrate,” 2011.
LibreCat
 
[50]
2011 | Conference Paper | LibreCat-ID: 64489
Brenner, Carsten, Nils Christopher Gerhardt, Martin R. Hofmann, Georg Schmitz, Claus-Stefan Friedrich, Martin P. Mienkina, Martin F. Beckmann, Manfred Jörger, and Andreas Strauß. “Quantitative Photoacoustic Blood Oxygenation Measurement of Whole Porcine Blood Samples Using a Multi-Wavelength Semiconductor Laser System,” 2011.
LibreCat
 
[49]
2011 | Conference Paper | LibreCat-ID: 64491
Gerhardt, Nils Christopher, Martin R. Hofmann, Nektarios Koukourakis, Dominic A. Funke, B. Kunert, S. Liebich, D. Trusheim, et al. “Modal Gain and Time-Resolved Photoluminescence of Ga(NAsP) Heterostructures Pseudomorphically Grown on Silicon (001) Substrate,” 2011.
LibreCat
 
[48]
2011 | Conference Paper | LibreCat-ID: 64490
Gerhardt, Nils Christopher, Martin R. Hofmann, Volker Jaedicke, Christoph Kasseck, Helge Wiethoff, Semih Agcaer, and Hubert Welp. “Spectroscopic Optical Coherence Tomography for Substance Identification,” 2011.
LibreCat
 
[47]
2010 | Journal Article | LibreCat-ID: 64505
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin F. Schiffner, Martin Hofmann, Georg Schmitz, and Martin F. Beckmann. “Multispectral Photoacoustic Coded Excitation Imaging Using Unipolar Orthogonal Golay Codes.” Optics Express 18, no. 9 (2010): 9076–87. https://doi.org/10.1364/oe.18.009076.
LibreCat | DOI
 
[46]
2010 | Journal Article | LibreCat-ID: 64502
Lai, Ryan Yiu Wai, Nektarios Koukourakis, Nils Christopher Gerhardt, Sven Hamann, Michael Ehmann, Klaus Hackl, Alfred Ludwig, Robert Meyer, Martin R. Hofmann, and Emmanouil Darakis. “Integrity of Micro-Hotplates during High-Temperature Operation Monitored by Digital Holographic Microscopy.” Journal of Microelectromechanical Systems 19, no. 5 (2010): 1175–79. https://doi.org/10.1109/jmems.2010.2067442.
LibreCat | DOI
 
[45]
2010 | Journal Article | LibreCat-ID: 64500
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Wilko G. Wilkening, Martin Hofmann, and Georg Schmitz. “Experimental Evaluation of Photoacoustic Coded Excitation Using Unipolar Golay Codes.” IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 57, no. 7 (2010): 1583–93. https://doi.org/10.1109/tuffc.2010.1588.
LibreCat | DOI
 
[44]
2010 | Conference Paper | LibreCat-ID: 64501
Gerhardt, Nils Christopher, Mingyuan Li, Hendrik Jähme, Henning Soldat, Martin R. Hofmann, and Thorsten Ackemann. “Gigahertz Circular Polarization Oscillations in Spin-Polarized Vertical-Cavity Surface-Emitting Lasers.” In Conference on Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010, 1–2, 2010. https://doi.org/10.1364/cleo.2010.cme6.
LibreCat | DOI
 
[43]
2010 | Conference Paper | LibreCat-ID: 64503
Koukourakis, Nektarios, Dominic Funke, Nils Christopher Gerhardt, Martin Hofmann, Bernardette Kunert, Sven Liebich, S. Zinnkann, et al. “Modal Gain Analysis of GaNAsP Heterostructures on Silicon.” In Frontiers in Optics, 2010. https://doi.org/10.1364/fio.2010.jwa56.
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[42]
2010 | Conference Paper | LibreCat-ID: 64506
Jaedicke, Volker, Christoph Tobias Kasseck, Nils Christopher Gerhardt, Martin Hofmann, and Hubert Welp. “Substance Identification in Spectroscopic Optical Coherence Tomograhpy Using Pattern Recognition.” In Frontiers in Optics, 2010. https://doi.org/10.1364/fio.2010.ftuy2.
LibreCat | DOI
 
[41]
2010 | Conference Paper | LibreCat-ID: 64499
Gerhardt, Nils Christopher, Martin R. Hofmann, Nektarios Koukourakis, and Yiu Wai Lai. “Photorefractive Two-Wave Mixing for Image Amplification in Digital Holography,” 2010. https://doi.org/10.1364/fio.2010.fthbb5.
LibreCat | DOI
 
[40]
2010 | Conference Paper | LibreCat-ID: 64504
Beckmann, Martin, Martin Mienkina, Georg Schmitz, Claus-Stefan Friedrich, Nils Christopher Gerhardt, and Martin R. Hofmann. “Monospectral Photoacoustic Imaging Using Legendre Sequences.” In 2010 IEEE International Ultrasonics Symposium (IUS), 1:386–89, 2010. https://doi.org/10.1109/ultsym.2010.5935648.
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[39]
2010 | Conference Paper | LibreCat-ID: 64498
Gerhardt, Nils Christopher, Martin R. Hofmann, Nektarios Koukourakis, Dominic A. Funke, B. Kunert, S. Liebich, S. Zinnkann, et al. “Modal Gain Analysis of GaNAsP Heterostructures on Silicon,” 2010.
LibreCat
 
[38]
2009 | Journal Article | LibreCat-ID: 64520
Gerhardt, Nils Christopher, Nektarios Koukourakis, Martin Hofmann, Bernadette Kunert, Igor Nemeth, Steffen Zinnkann, G. Lukin, et al. “Op­ti­cal Ve­ri­fi­ca­ti­on of Gain in Ga(NAsP)/(BGa)(AsP) Mul­ti-Quan­tum-Well He­te­rost­ruc­tu­res Mo­no­li­thi­cal­ly Grown Lat­ti­ce-Mat­ched on (001) Si­li­con Sub­stra­te.” Papers Presented at the 35th International Symposium on Compound Semiconductors (ISCS 2008), Rust, Germany, 21 - 24 September 2008, 2009, 1349–1523.
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[37]
2009 | Conference Paper | LibreCat-ID: 64514
Gerhardt, Nils Christopher, Martin Hofmann, Christoph Lange, Sati Nath Chatterjee, Bernadette Kunert, Kerstin Volz, Wolfgang Stolz, and Wolfgang W. Rühle. “Gain Characteristics and Lasing of Ga(NAsP) Multi-Quantum Well Structures.” In Papers Presented at the 9th International Workshop on Nonlinear Optics and Excitation Kinetics in Semiconductors (NOEKS 9), 576–78, 2009. https://doi.org/10.1002/pssc.200880360.
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[36]
2009 | Conference Paper | LibreCat-ID: 64519
Koukourakis, Nektarios, Christoph Kasseck, Nils Christopher Gerhardt, Martin Hofmann, Daniel Rytz, Sebastian Köber, Michael Salvador, and Klaus Meerholz. “New Concepts for Depth Resolved Holographic Imaging Based on Spectrally Tunable Diode Lasers.” In Conference on Lasers and Electro-Optics, 2009 and 2009 Quantum Electronics and Laser Science Conference, 1253–54, 2009. https://doi.org/10.1364/cleo.2009.ctuaa2.
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[35]
2009 | Conference Paper | LibreCat-ID: 64517
Gerhardt, Nils Christopher, Bernadette Kunert, Siegfried Liebich, M. Zimprich, Steffen Zinnkann, R. Fritz, Kerstin Volz, et al. “Lasing of the III/V Compound Semiconductor Ga(NAsP) Integrated Lattice-Matched to Si Substrate.” In Group IV Photonics, 199–201, 2009. https://doi.org/10.1109/group4.2009.5338394.
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[34]
2009 | Journal Article | LibreCat-ID: 64511
Koukourakis, Nektarios, Martin Breede, Nils Christopher Gerhardt, Martin Hofmann, Sebastian Köber, Michael Salvador, and Klaus Meerholz. “Depth Resolved Holographic Imaging with Variable Depth Resolution Using Spectrally Tunable Diode Laser.” Electronics Letters 45, no. 1 (2009): 46–48. https://doi.org/10.1049/el:20092390.
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[33]
2009 | Conference Paper | LibreCat-ID: 64523
Kasseck, Christoph, Nils Christopher Gerhardt, Thilo Gambichler, Martin Hofmann, Marita Kratz, Antonia Torcasio, G. Harry van Lenthe, Klaus Hoffmann, and David B. Jones. “Three-Dimensional Bone Imaging: Optical Coherence Tomography versus Micro Computer Tomography.” In Optical Coherence Tomography and Coherence Techniques IV, 73721B, 2009. https://doi.org/10.1117/12.831814.
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[32]
2009 | Journal Article | LibreCat-ID: 64521
Koukourakis, Nektarios, Christoph Kasseck, Nils Christopher Gerhardt, Martin Hofmann, and Daniel Rytz. “Single-Shot Holography for Depth Resolved Three Dimensional Imaging.” Optics Express 17, no. 23 (2009): 21015–29. https://doi.org/10.1364/oe.17.021015.
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[31]
2009 | Conference Paper | LibreCat-ID: 64518
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin Hofmann, and Georg Schmitz. “Multispectral Photoacoustic Coded Excitation Using Orthogonal Unipolar Golay Codes.” In Diagnostic Imaging, 217–20, 2009. https://doi.org/10.1007/978-3-642-03879-2_61.
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[30]
2009 | Conference Paper | LibreCat-ID: 64516
Gerhardt, Nils Christopher, Nektarios Koukourakis, Martin Hofmann, Christoph Lange, Niko S. Köster, Daniel J. Franzbach, Sati Nath Chatterjee, et al. “Lasing in Optically Pumped Ga(NAsP)/(BGa)(AsP) Heterstructures on Silicon.” In Conference on Lasers and Electro-Optics, 2009 and 2009 Quantum Electronics and Laser Science Conference, 1–2, 2009. https://doi.org/10.1364/cleo.2009.ctuy2.
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[29]
2009 | Conference Paper | LibreCat-ID: 64515
Gerhardt, Nils Christopher, Nektarios Koukourakis, Martin Hofmann, Bernadette Kunert, Siegfried Liebich, Steffen Zinnkann, Robert Nemeth, et al. “Laser Operation of III/V Compound Material Ga(NAsP) Grown Lattice-Matched on (001) Si Substrate.” In Device Research Conference, 193–94, 2009. https://doi.org/10.1109/drc.2009.5354936.
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[28]
2009 | Conference Paper | LibreCat-ID: 64513
Mienkina, Martin, Georg Schmitz, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin Hofmann, and Annika Eder. “Feasibility Study of Multispectral Photoacoustic Coded Excitation Using Orthogonal Unipolar Golay Codes.” In 2009 IEEE Ultrasonics Symposium, 1:108–11, 2009. https://doi.org/10.1109/ultsym.2009.5441941.
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[27]
2009 | Journal Article | LibreCat-ID: 64512
Mienkina, Martin, Claus-Stefan Friedrich, Karin Hensel, Nils Christopher Gerhardt, Martin Hofmann, and Georg Schmitz. “Evaluation of Ferucarbotran (Resovist®) as a Photoacoustic Contrast Agent.” Biomedical Engineering 54, no. 2 (2009): 83–88. https://doi.org/10.1515/bmt.2009.012.
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[26]
2009 | Conference Paper | LibreCat-ID: 64522
Hövel, Stephan, Nils Christopher Gerhardt, Martin Hofmann, Fang-Yuh Lo, Dirk Reuter, Andreas Wieck, Ellen Ursula Schuster, and Werner Keune. “Spin-Con­trol­led Op­to­elec­tro­nic De­vices.” In Papers Presented at the 9th International Workshop on Nonlinear Optics and Excitation Kinetics in Semiconductors (NOEKS 9), 436–39, 2009. https://doi.org/10.1002/pssc.200880357.
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[25]
2009 | Conference Paper | LibreCat-ID: 64509
Friedrich, Claus-Stefan, Martin Mienkina, Nils Christopher Gerhardt, Georg Schmitz, Martin Hofmann, and Mona-Carina Wawreczko. “Compact Semiconductor Laser Sources for Photoacoustic Imaging.” In Photons plus Ultrasound, 1–7, 2009. https://doi.org/10.1117/12.809261.
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[24]
2009 | Conference Paper | LibreCat-ID: 64510
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin R. Hofmann, Georg Schmitz, and Annika Eder. “Comparison of Coding Techniques for Photoacoustic Coded Excitation.” In Proceedings, 1:313–16, 2009.
LibreCat
 
[23]
2008 | Conference Paper | LibreCat-ID: 64524
Friedrich, Claus-Stefan, Nils Christopher Gerhardt, Martin Hofmann, Georg Schmitz, Martin P. Mienkina, and Annika Eder. “Evaluation of Simplex Codes for Photoacoustic Coded Excitation.” In 4th European Conference of the International Federation for Medical and Biological Engineering, 1:444–47, 2008. https://doi.org/10.1007/978-3-540-89208-3_105.
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[22]
2008 | Conference Paper | LibreCat-ID: 64525
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Martin Hofmann, Georg Schmitz, and Alexander Eder. “Simulation Study of Photoacoustic Coded Excitation Using Golay Codes.” In IEEE Ultrasonics Symposium, 2008, 1242–45, 2008. https://doi.org/10.1109/ultsym.2008.0300.
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[21]
2007 | Conference Paper | LibreCat-ID: 64527
Breede, Martin, Christoph Kasseck, Carsten Brenner, Nils Christopher Gerhardt, Martin Hofmann, and Roland Höfling. “External-Cavity Diode Laser Utilizing a Micromirror Device for Spectral Tuning.” In Optical Measurement Systems for Industrial Inspection V, 1–11, 2007. https://doi.org/10.1117/12.726825.
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[20]
2007 | Journal Article | LibreCat-ID: 64528
Breede, Martin, Christoph Kasseck, Carsten Brenner, Nils Christopher Gerhardt, Martin Hofmann, and Roland Höfling. “Micromirror Device Controlled Tunable Diode Laser.” Electronics Letters 43, no. 8 (2007): 456–57. https://doi.org/10.1049/el:20073651.
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[19]
2007 | Conference Paper | LibreCat-ID: 64529
Mienkina, Martin, Claus-Stefan Friedrich, Nils Christopher Gerhardt, Karin Hensel, Carsten Brenner, Martin Hofmann, Georg Schmitz, and Kelly Waldeck. “Photoacoustic Imaging of Fibrosarcoma Using RGD-Cy 3 as a Targeted Contrast Agent.” In IEEE Ultrasonics Symposium, 2007, 5:2409–12, 2007. https://doi.org/10.1109/ultsym.2007.606.
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[18]
2007 | Journal Article | LibreCat-ID: 64526
Mienkina, Martin, Nils Christopher Gerhardt, Martin Breede, Carsten Brenner, Martin Hofmann, Georg Schmitz, and Kelly Waldeck. “Evaluation Eines Kommerziellen Ultraschallgeräts Für Den Einsatz Im Photoakustischen Reflexionsmodus.” Biomedical Engineering 52, no. S1 (2007): G2-1.
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[17]
2007 | Journal Article | LibreCat-ID: 64531
Hövel, Stephan, Nils Christopher Gerhardt, Carsten Brenner, Martin Hofmann, Fang-Yuh Lo, Dirk Reuter, Andreas Wieck, Ellen Ursula Schuster, and Werner Keune. “Spin-Controlled LEDs and VCSELs.” Physica Status Solidi 204, no. 2 (2007): 500–507. https://doi.org/10.1002/pssa.200673219.
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[16]
2007 | Conference Paper | LibreCat-ID: 64530
Kasseck, Christoph, Nils Christopher Gerhardt, Martin Hofmann, and Kirsten Lehmann. “Spectroscopic Fourier Domain Optical Coherence Tomography.” In Optical Coherence Tomography and Coherence Techniques III, 1–9, 2007. https://doi.org/10.1117/12.728416.
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[15]
2006 | Dissertation | LibreCat-ID: 64534
Gerhardt, Nils Christopher, and Fakultät für Elektrotechnik und Informationstechnik. Optische Verstärkung Und Spin-Kontrollierte Emission von Halbleiterlasern, 2006.
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[14]
2006 | Journal Article | LibreCat-ID: 64533
Mienkina, Martin, Karin Hensel, Ngoc Tuyen Le, Nils Christopher Gerhardt, Erik Bründermann, Martina Havenith, Martin Hofmann, Georg Schmitz, and Ilona Kopf. “Experimentelle Charakterisierung von Ferucarbotran Als Photoakustisches Kontrastmittel.” Biomedical Engineering 51, no. Suppl. (2006): 1–2.
LibreCat
 
[13]
2006 | Conference Paper | LibreCat-ID: 64532
Mienkina, Martin, Karin Hensel, Ngoc Tuyen Le, Nils Christopher Gerhardt, Christian Hansen, Martin Hofmann, and Georg Schmitz. “Experimental Characterization of Ferucarbotran (Resovist ®) as a Photoacoustic Nanoparticle Contrast Agent.” In Proceedings, 1:393–96, 2006. https://doi.org/10.1109/ultsym.2006.111.
LibreCat | DOI
 
[12]
2005 | Conference Paper | LibreCat-ID: 64536
Gerhardt, Nils Christopher, Stephan Hövel, Carsten Brenner, Martin Hofmann, Dirk Reuter, Andreas Wieck, and Junling Yang. “Spin-Controlled LEDs and VCSELs.” In Physics and Simulation of Optoelectronic Devices XIII, 221–29, 2005. https://doi.org/10.1117/12.590346.
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[11]
2005 | Journal Article | LibreCat-ID: 64535
Gerhardt, Nils Christopher, Stephan Hövel, Carsten Brenner, Martin Hofmann, Fang-Yuh Lo, Dirk Reuter, Andreas Wieck, Kurt Westerholt, Ellen Ursula Schuster, and Werner Keune. “Electron Spin Injection into GaAs from Ferromagnetic Contacts in Remanence.” Applied Physics Letters 87, no. 3 (2005): 1–3. https://doi.org/10.1063/1.1996843.
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[10]
2003 | Conference Paper | LibreCat-ID: 64538
Hofmann, Martin, and Nils Christopher Gerhardt. “Gain and Emission Dynamics of Dilute Nitride Quantum Well Lasers.” In Frontiers in Optics 2003, 2003. https://doi.org/10.1364/fio.2003.thn1.
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[9]
2003 | Conference Paper | LibreCat-ID: 64539
Gerhardt, Nils Christopher, Norbert Hofmann, Wolfgang Stolz, Wolfgang Koch, Jörg Hader, Jerome V. Moloney, A. Yu Egorov, and Henning Riechert. “Optical Gain of 1.3 Μm (GaIn)(NAs)/GaAs Lasers - a Comparison between Theory and Experiment.” In Special Section on Semiconductor Optoelectronics, 2003.
LibreCat
 
[8]
2003 | Journal Article | LibreCat-ID: 64540
Gerhardt, Nils Christopher, Martin Hofmann, and Wolfgang W. Rühle. “Optical Spectroscopy of 1.3 Μm (GaIn)(NAs)/GaAs Lasers.” IEE Proceedings 150, no. 1 (2003): 45–48. https://doi.org/10.1049/ip-opt:20030035.
LibreCat | DOI
 
[7]
2003 | Conference Paper | LibreCat-ID: 64537
Gerhardt, Nils Christopher, and Martin R. Hofmann. “Experimentelle Methoden Zur Bestimmung Der Optischen Verstärkung von 1.3µm (GaIn)(NAs)/GaAs Halbleiterlasern.” In Frühjahrstagung Des Arbeitskreises Festkörperphysik Bei Der DPG, 2003.
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[6]
2002 | Journal Article | LibreCat-ID: 64541
Hofmann, Martin, Nils Christopher Gerhardt, Anke Wagner, Christoph Ellmers, Falko Höhnsdorf, Jörg Koch, Wolfgang Stolz, et al. “Emission Dynamics and Optical Gain of 1.3 \mum (GaIn)(NAs)/GaAs Lasers.” IEEE Journal of Quantum Electronics / Institute of Electrical and Electronics Engineers 38, no. 2 (2002): 213–21. https://doi.org/10.1109/3.980275.
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[5]
2002 | Conference Paper | LibreCat-ID: 64542
Gerhardt, Nils Christopher, Martin Hofmann, K. Hantke, Wolfgang Stolz, Stephan W. Koch, Jörg Hader, Jerome V. Moloney, A. Yu Egorov, and Henning Riechert. “Influence of Growth Conditions on the Optical Gain of 1.3 /Spl Mu/m (GaIn)(NAs)/GaAs Lasers.” In Conference Digest, 85–86, 2002. https://doi.org/10.1109/islc.2002.1041130.
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[4]
2001 | Conference Paper | LibreCat-ID: 64543
Hofmann, Martin, Nils Christopher Gerhardt, Anke Wagner, Christoph Ellmers, Falko Höhnsdorf, Jörg Koch, Simone Leu, Wolfgang Stolz, and Wolfgang W. Rühle. “Emission Dynamics of (GaIn)(NAs)/GaAs Lasers Emitting at 1.3 Μm.” In Physics and Simulation of Optoelectronic Devices IX, 256–66, 2001. https://doi.org/10.1117/12.432573.
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[3]
2001 | Conference Paper | LibreCat-ID: 64545
Hofmann, Martin R., Nils Christopher Gerhardt, A. Wagner, C. Ellmers, F. Höhnsdorf, J. Koch, S.W. Koch, et al. “Optische Verstärkung von (GaIn)(NAs)/GaAs Halbleiterlasern.” In 65. Physikertagung & Frühjahrstagung Des Arbeitskreises Festkörperphysik Bei Der DPG, 2001.
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[2]
2001 | Conference Paper | LibreCat-ID: 64546
Hofmann, Martin, Nils Christopher Gerhardt, Anke Wagner, Wolfgang Stolz, Stephan W. Koch, Wolfgang W. Rühle, and Jörg Hader. “Physics of 1.3µm (GaIn)(NAs)/GaAs Semiconductor Lasers.” In LEOS 2001, 1:326–27, 2001. https://doi.org/10.1109/leos.2001.969307.
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[1]
2001 | Book Chapter | LibreCat-ID: 64547
Hägele, Daniel, Nils Christopher Gerhardt, Martin Hofmann, Michael Oestreich, Jens Hübner, Markus Bender, Wolfgang W. Rühle, et al. “Spintronics - Spin Electronics and Optoelectronics in Semiconductors.” In Advances in Solid State Physics 41, 173–86, 2001. https://doi.org/10.1007/3-540-44946-9_15.
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