[{"date_created":"2020-11-17T09:52:47Z","title":"Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method","issue":"24","year":"2020","language":[{"iso":"eng"}],"keyword":["tet_topic_waveguides"],"publication":"Optics Express","abstract":[{"lang":"eng","text":"A stepwise angular spectrum method (SASM) for curved interfaces is presented to calculate the wave propagation in planar lens-like integrated optical structures based on photonic slab waveguides. The method is derived and illustrated for an effective 2D setup first and then for 3D slab waveguide lenses. We employ slab waveguides of different thicknesses connected by curved surfaces to realize a lens-like structure. To simulate the wave propagation in 3D including reflection and scattering losses, the stepwise angular spectrum method is combined with full vectorial finite element computations for subproblems with lower complexity. Our SASM results show excellent agreement with rigorous numerical simulations of the full structures with a substantially lower computational effort and can be utilized for the simulation-based design and optimization of complex and large scale setups."}],"author":[{"first_name":"Lena","id":"40428","full_name":"Ebers, Lena","last_name":"Ebers"},{"full_name":"Hammer, Manfred","id":"48077","last_name":"Hammer","orcid":"0000-0002-6331-9348","first_name":"Manfred"},{"id":"158","full_name":"Förstner, Jens","last_name":"Förstner","orcid":"0000-0001-7059-9862","first_name":"Jens"}],"volume":28,"date_updated":"2022-01-06T06:54:26Z","doi":"10.1364/oe.409612","publication_status":"published","publication_identifier":{"issn":["1094-4087"]},"citation":{"mla":"Ebers, Lena, et al. “Light Diffraction in Slab Waveguide Lenses Simulated with the Stepwise Angular Spectrum Method.” <i>Optics Express</i>, vol. 28, no. 24, 2020, p. 36361, doi:<a href=\"https://doi.org/10.1364/oe.409612\">10.1364/oe.409612</a>.","short":"L. Ebers, M. Hammer, J. Förstner, Optics Express 28 (2020) 36361.","bibtex":"@article{Ebers_Hammer_Förstner_2020, title={Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method}, volume={28}, DOI={<a href=\"https://doi.org/10.1364/oe.409612\">10.1364/oe.409612</a>}, number={24}, journal={Optics Express}, author={Ebers, Lena and Hammer, Manfred and Förstner, Jens}, year={2020}, pages={36361} }","apa":"Ebers, L., Hammer, M., &#38; Förstner, J. (2020). Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method. <i>Optics Express</i>, <i>28</i>(24), 36361. <a href=\"https://doi.org/10.1364/oe.409612\">https://doi.org/10.1364/oe.409612</a>","ama":"Ebers L, Hammer M, Förstner J. Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method. <i>Optics Express</i>. 2020;28(24):36361. doi:<a href=\"https://doi.org/10.1364/oe.409612\">10.1364/oe.409612</a>","chicago":"Ebers, Lena, Manfred Hammer, and Jens Förstner. “Light Diffraction in Slab Waveguide Lenses Simulated with the Stepwise Angular Spectrum Method.” <i>Optics Express</i> 28, no. 24 (2020): 36361. <a href=\"https://doi.org/10.1364/oe.409612\">https://doi.org/10.1364/oe.409612</a>.","ieee":"L. Ebers, M. Hammer, and J. Förstner, “Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method,” <i>Optics Express</i>, vol. 28, no. 24, p. 36361, 2020."},"intvolume":"        28","page":"36361","user_id":"158","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"project":[{"_id":"53","name":"TRR 142"},{"name":"TRR 142 - Project Area C","_id":"56"},{"_id":"74","name":"TRR 142 - Subproject C4"},{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"_id":"20372","type":"journal_article","status":"public"},{"date_created":"2020-12-02T12:57:58Z","title":"Nanoantennas embedded in zinc oxide for second harmonic generation enhancement","quality_controlled":"1","issue":"4","year":"2020","external_id":{"isi":["000557311900001"]},"language":[{"iso":"eng"}],"publication":"Journal of Applied Physics","abstract":[{"text":"Plasmonic nanoantennas for visible and infrared radiation strongly improve the interaction of light with the matter on the nanoscale due to their strong near-field enhancement. In this study, we investigate a double-resonant plasmonic nanoantenna, which makes use of plasmonic field enhancement, enhanced outcoupling of second harmonic light, and resonant lattice effects. Using this design, we demonstrate how the efficiency of second harmonic generation can be increased significantly by fully embedding the nanoantennas into nonlinear dielectric material ZnO, instead of placing them on the surface. Investigating two different processes, we found that the best fabrication route is embedding the gold nanoantennas in ZnO using an MBE overgrowth process where a thin ZnO layer was deposited on nanoantennas fabricated on a ZnO substrate. In addition, second harmonic generation measurements show that the embedding leads to an enhancement compared to the emission of nanoantennas placed on the ZnO substrate surface. These promising results facilitate further research to determine the influence of the periodicity of the nanoantenna arrangement of the resulting SHG signal.","lang":"eng"}],"date_updated":"2022-01-06T06:54:31Z","author":[{"full_name":"Volmert, Ruth","last_name":"Volmert","first_name":"Ruth"},{"last_name":"Weber","full_name":"Weber, Nils","first_name":"Nils"},{"orcid":"https://orcid.org/0000-0002-3787-3572","last_name":"Meier","id":"20798","full_name":"Meier, Cedrik","first_name":"Cedrik"}],"volume":128,"doi":"10.1063/5.0012813","publication_status":"published","publication_identifier":{"eissn":["1089-7550"],"issn":["0021-8979"]},"citation":{"apa":"Volmert, R., Weber, N., &#38; Meier, C. (2020). Nanoantennas embedded in zinc oxide for second harmonic generation enhancement. <i>Journal of Applied Physics</i>, <i>128</i>(4). <a href=\"https://doi.org/10.1063/5.0012813\">https://doi.org/10.1063/5.0012813</a>","mla":"Volmert, Ruth, et al. “Nanoantennas Embedded in Zinc Oxide for Second Harmonic Generation Enhancement.” <i>Journal of Applied Physics</i>, vol. 128, no. 4, 043107, 2020, doi:<a href=\"https://doi.org/10.1063/5.0012813\">10.1063/5.0012813</a>.","short":"R. Volmert, N. Weber, C. Meier, Journal of Applied Physics 128 (2020).","bibtex":"@article{Volmert_Weber_Meier_2020, title={Nanoantennas embedded in zinc oxide for second harmonic generation enhancement}, volume={128}, DOI={<a href=\"https://doi.org/10.1063/5.0012813\">10.1063/5.0012813</a>}, number={4043107}, journal={Journal of Applied Physics}, author={Volmert, Ruth and Weber, Nils and Meier, Cedrik}, year={2020} }","chicago":"Volmert, Ruth, Nils Weber, and Cedrik Meier. “Nanoantennas Embedded in Zinc Oxide for Second Harmonic Generation Enhancement.” <i>Journal of Applied Physics</i> 128, no. 4 (2020). <a href=\"https://doi.org/10.1063/5.0012813\">https://doi.org/10.1063/5.0012813</a>.","ieee":"R. Volmert, N. Weber, and C. Meier, “Nanoantennas embedded in zinc oxide for second harmonic generation enhancement,” <i>Journal of Applied Physics</i>, vol. 128, no. 4, 2020.","ama":"Volmert R, Weber N, Meier C. Nanoantennas embedded in zinc oxide for second harmonic generation enhancement. <i>Journal of Applied Physics</i>. 2020;128(4). doi:<a href=\"https://doi.org/10.1063/5.0012813\">10.1063/5.0012813</a>"},"intvolume":"       128","project":[{"name":"TRR 142","_id":"53"},{"_id":"55","name":"TRR 142 - Project Area B"},{"_id":"66","name":"TRR 142 - Subproject B1"},{"_id":"56","name":"TRR 142 - Project Area C"},{"name":"TRR 142 - Subproject C5","_id":"75"}],"_id":"20644","user_id":"20798","department":[{"_id":"230"},{"_id":"429"}],"article_type":"original","isi":"1","article_number":"043107","type":"journal_article","status":"public"},{"author":[{"first_name":"Maximilian","full_name":"Protte, Maximilian","id":"46170","last_name":"Protte"},{"first_name":"Lena","full_name":"Ebers, Lena","id":"40428","last_name":"Ebers"},{"orcid":"0000-0002-6331-9348","last_name":"Hammer","id":"48077","full_name":"Hammer, Manfred","first_name":"Manfred"},{"full_name":"Höpker, Jan Philipp","id":"33913","last_name":"Höpker","first_name":"Jan Philipp"},{"first_name":"Maximilian","last_name":"Albert","full_name":"Albert, Maximilian"},{"full_name":"Quiring, Viktor","last_name":"Quiring","first_name":"Viktor"},{"id":"20798","full_name":"Meier, Cedrik","last_name":"Meier","orcid":"https://orcid.org/0000-0002-3787-3572","first_name":"Cedrik"},{"full_name":"Förstner, Jens","id":"158","last_name":"Förstner","orcid":"0000-0001-7059-9862","first_name":"Jens"},{"first_name":"Christine","last_name":"Silberhorn","id":"26263","full_name":"Silberhorn, Christine"},{"last_name":"Bartley","full_name":"Bartley, Tim","id":"49683","first_name":"Tim"}],"date_updated":"2022-10-25T07:41:15Z","doi":"10.1364/quantum.2020.qth7a.8","publication_status":"published","has_accepted_license":"1","publication_identifier":{"isbn":["9781943580811"]},"citation":{"ama":"Protte M, Ebers L, Hammer M, et al. Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics. In: <i>OSA Quantum 2.0 Conference</i>. ; 2020. doi:<a href=\"https://doi.org/10.1364/quantum.2020.qth7a.8\">10.1364/quantum.2020.qth7a.8</a>","ieee":"M. Protte <i>et al.</i>, “Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics,” 2020, doi: <a href=\"https://doi.org/10.1364/quantum.2020.qth7a.8\">10.1364/quantum.2020.qth7a.8</a>.","chicago":"Protte, Maximilian, Lena Ebers, Manfred Hammer, Jan Philipp Höpker, Maximilian Albert, Viktor Quiring, Cedrik Meier, Jens Förstner, Christine Silberhorn, and Tim Bartley. “Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics.” In <i>OSA Quantum 2.0 Conference</i>, 2020. <a href=\"https://doi.org/10.1364/quantum.2020.qth7a.8\">https://doi.org/10.1364/quantum.2020.qth7a.8</a>.","apa":"Protte, M., Ebers, L., Hammer, M., Höpker, J. P., Albert, M., Quiring, V., Meier, C., Förstner, J., Silberhorn, C., &#38; Bartley, T. (2020). Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics. <i>OSA Quantum 2.0 Conference</i>, Article QTh7A.8. <a href=\"https://doi.org/10.1364/quantum.2020.qth7a.8\">https://doi.org/10.1364/quantum.2020.qth7a.8</a>","bibtex":"@inproceedings{Protte_Ebers_Hammer_Höpker_Albert_Quiring_Meier_Förstner_Silberhorn_Bartley_2020, title={Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics}, DOI={<a href=\"https://doi.org/10.1364/quantum.2020.qth7a.8\">10.1364/quantum.2020.qth7a.8</a>}, number={QTh7A.8}, booktitle={OSA Quantum 2.0 Conference}, author={Protte, Maximilian and Ebers, Lena and Hammer, Manfred and Höpker, Jan Philipp and Albert, Maximilian and Quiring, Viktor and Meier, Cedrik and Förstner, Jens and Silberhorn, Christine and Bartley, Tim}, year={2020} }","mla":"Protte, Maximilian, et al. “Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics.” <i>OSA Quantum 2.0 Conference</i>, QTh7A.8, 2020, doi:<a href=\"https://doi.org/10.1364/quantum.2020.qth7a.8\">10.1364/quantum.2020.qth7a.8</a>.","short":"M. Protte, L. Ebers, M. Hammer, J.P. Höpker, M. Albert, V. Quiring, C. Meier, J. Förstner, C. Silberhorn, T. Bartley, in: OSA Quantum 2.0 Conference, 2020."},"user_id":"49683","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"},{"_id":"15"}],"_id":"21719","file_date_updated":"2021-04-22T15:58:52Z","article_number":"QTh7A.8","type":"conference","status":"public","date_created":"2021-04-22T15:56:45Z","title":"Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics","year":"2020","language":[{"iso":"eng"}],"ddc":["530"],"keyword":["tet_topic_waveguide"],"publication":"OSA Quantum 2.0 Conference","file":[{"content_type":"application/pdf","success":1,"relation":"main_file","date_updated":"2021-04-22T15:58:52Z","date_created":"2021-04-22T15:58:52Z","creator":"fossie","file_size":1704199,"file_name":"Quantum2.0-Towards SSC hybrid integration for quantum photonics[4936].pdf","access_level":"closed","file_id":"21720"}],"abstract":[{"text":"We fabricate silicon tapers to increase the mode overlap of superconducting detectors on Ti:LiNbO3 waveguides. Mode images show a reduction in mode size from 6 µm to 2 µm FWHM, agreeing with beam propagation simulations.","lang":"eng"}]},{"date_created":"2020-06-25T12:31:42Z","title":"Electrically controlled rapid adiabatic passage in a single quantum dot","year":"2020","language":[{"iso":"eng"}],"ddc":["530"],"keyword":["tet_topic_qd"],"publication":"Applied Physics Letters","file":[{"embargo_to":"open_access","relation":"main_file","date_created":"2020-06-25T12:45:04Z","date_updated":"2022-01-06T06:53:07Z","file_id":"17325","access_level":"request","content_type":"application/pdf","creator":"fossie","embargo":"2021-06-25","file_name":"2020-06 Widhalm - APL - Electrically controlled RAP in single QD (official).pdf","file_size":1359326}],"author":[{"first_name":"Amlan","full_name":"Mukherjee, Amlan","last_name":"Mukherjee"},{"full_name":"Widhalm, Alex","last_name":"Widhalm","first_name":"Alex"},{"full_name":"Siebert, Dustin","last_name":"Siebert","first_name":"Dustin"},{"full_name":"Krehs, Sebastian","last_name":"Krehs","first_name":"Sebastian"},{"first_name":"Nandlal","last_name":"Sharma","full_name":"Sharma, Nandlal"},{"first_name":"Andreas","full_name":"Thiede, Andreas","id":"538","last_name":"Thiede"},{"first_name":"Dirk","id":"37763","full_name":"Reuter, Dirk","last_name":"Reuter"},{"first_name":"Jens","full_name":"Förstner, Jens","id":"158","orcid":"0000-0001-7059-9862","last_name":"Förstner"},{"id":"606","full_name":"Zrenner, Artur","orcid":"0000-0002-5190-0944","last_name":"Zrenner","first_name":"Artur"}],"volume":116,"date_updated":"2023-01-24T11:12:09Z","doi":"10.1063/5.0012257","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["0003-6951","1077-3118"]},"citation":{"apa":"Mukherjee, A., Widhalm, A., Siebert, D., Krehs, S., Sharma, N., Thiede, A., Reuter, D., Förstner, J., &#38; Zrenner, A. (2020). Electrically controlled rapid adiabatic passage in a single quantum dot. <i>Applied Physics Letters</i>, <i>116</i>, 251103. <a href=\"https://doi.org/10.1063/5.0012257\">https://doi.org/10.1063/5.0012257</a>","short":"A. Mukherjee, A. Widhalm, D. Siebert, S. Krehs, N. Sharma, A. Thiede, D. Reuter, J. Förstner, A. Zrenner, Applied Physics Letters 116 (2020) 251103.","mla":"Mukherjee, Amlan, et al. “Electrically Controlled Rapid Adiabatic Passage in a Single Quantum Dot.” <i>Applied Physics Letters</i>, vol. 116, 2020, p. 251103, doi:<a href=\"https://doi.org/10.1063/5.0012257\">10.1063/5.0012257</a>.","bibtex":"@article{Mukherjee_Widhalm_Siebert_Krehs_Sharma_Thiede_Reuter_Förstner_Zrenner_2020, title={Electrically controlled rapid adiabatic passage in a single quantum dot}, volume={116}, DOI={<a href=\"https://doi.org/10.1063/5.0012257\">10.1063/5.0012257</a>}, journal={Applied Physics Letters}, author={Mukherjee, Amlan and Widhalm, Alex and Siebert, Dustin and Krehs, Sebastian and Sharma, Nandlal and Thiede, Andreas and Reuter, Dirk and Förstner, Jens and Zrenner, Artur}, year={2020}, pages={251103} }","chicago":"Mukherjee, Amlan, Alex Widhalm, Dustin Siebert, Sebastian Krehs, Nandlal Sharma, Andreas Thiede, Dirk Reuter, Jens Förstner, and Artur Zrenner. “Electrically Controlled Rapid Adiabatic Passage in a Single Quantum Dot.” <i>Applied Physics Letters</i> 116 (2020): 251103. <a href=\"https://doi.org/10.1063/5.0012257\">https://doi.org/10.1063/5.0012257</a>.","ieee":"A. Mukherjee <i>et al.</i>, “Electrically controlled rapid adiabatic passage in a single quantum dot,” <i>Applied Physics Letters</i>, vol. 116, p. 251103, 2020, doi: <a href=\"https://doi.org/10.1063/5.0012257\">10.1063/5.0012257</a>.","ama":"Mukherjee A, Widhalm A, Siebert D, et al. Electrically controlled rapid adiabatic passage in a single quantum dot. <i>Applied Physics Letters</i>. 2020;116:251103. doi:<a href=\"https://doi.org/10.1063/5.0012257\">10.1063/5.0012257</a>"},"intvolume":"       116","page":"251103","user_id":"158","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"},{"_id":"51"}],"project":[{"_id":"56","name":"TRR 142 - Project Area C"},{"name":"TRR 142 - Subproject C4","_id":"74"},{"name":"TRR 142","_id":"53"},{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"_id":"17322","file_date_updated":"2022-01-06T06:53:07Z","type":"journal_article","status":"public"},{"language":[{"iso":"eng"}],"article_number":"32925-32935","user_id":"13244","department":[{"_id":"15"},{"_id":"230"},{"_id":"429"},{"_id":"288"}],"project":[{"_id":"55","name":"TRR 142 - B: TRR 142 - Project Area B"}],"_id":"21025","status":"public","type":"journal_article","publication":"Optics Express","doi":"10.1364/oe.399483","title":"Spatially single mode photon pair source at 800 nm in periodically poled Rubidium exchanged KTP waveguides","date_created":"2021-01-20T08:35:45Z","author":[{"id":"13244","full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","first_name":"Christof"},{"first_name":"Laura","last_name":"Padberg","id":"40300","full_name":"Padberg, Laura"},{"orcid":"0000-0001-5718-358X","last_name":"Santandrea","id":"55095","full_name":"Santandrea, Matteo","first_name":"Matteo"},{"last_name":"Herrmann","full_name":"Herrmann, Harald","id":"216","first_name":"Harald"},{"first_name":"Benjamin","last_name":"Brecht","orcid":"0000-0003-4140-0556 ","full_name":"Brecht, Benjamin","id":"27150"},{"last_name":"Silberhorn","id":"26263","full_name":"Silberhorn, Christine","first_name":"Christine"}],"volume":28,"date_updated":"2023-02-01T12:46:27Z","citation":{"apa":"Eigner, C., Padberg, L., Santandrea, M., Herrmann, H., Brecht, B., &#38; Silberhorn, C. (2020). Spatially single mode photon pair source at 800 nm in periodically poled Rubidium exchanged KTP waveguides. <i>Optics Express</i>, <i>28</i>(22), Article 32925–32935. <a href=\"https://doi.org/10.1364/oe.399483\">https://doi.org/10.1364/oe.399483</a>","short":"C. Eigner, L. Padberg, M. Santandrea, H. Herrmann, B. Brecht, C. Silberhorn, Optics Express 28 (2020).","bibtex":"@article{Eigner_Padberg_Santandrea_Herrmann_Brecht_Silberhorn_2020, title={Spatially single mode photon pair source at 800 nm in periodically poled Rubidium exchanged KTP waveguides}, volume={28}, DOI={<a href=\"https://doi.org/10.1364/oe.399483\">10.1364/oe.399483</a>}, number={2232925–32935}, journal={Optics Express}, author={Eigner, Christof and Padberg, Laura and Santandrea, Matteo and Herrmann, Harald and Brecht, Benjamin and Silberhorn, Christine}, year={2020} }","mla":"Eigner, Christof, et al. “Spatially Single Mode Photon Pair Source at 800 Nm in Periodically Poled Rubidium Exchanged KTP Waveguides.” <i>Optics Express</i>, vol. 28, no. 22, 32925–32935, 2020, doi:<a href=\"https://doi.org/10.1364/oe.399483\">10.1364/oe.399483</a>.","ieee":"C. Eigner, L. Padberg, M. Santandrea, H. Herrmann, B. Brecht, and C. Silberhorn, “Spatially single mode photon pair source at 800 nm in periodically poled Rubidium exchanged KTP waveguides,” <i>Optics Express</i>, vol. 28, no. 22, Art. no. 32925–32935, 2020, doi: <a href=\"https://doi.org/10.1364/oe.399483\">10.1364/oe.399483</a>.","chicago":"Eigner, Christof, Laura Padberg, Matteo Santandrea, Harald Herrmann, Benjamin Brecht, and Christine Silberhorn. “Spatially Single Mode Photon Pair Source at 800 Nm in Periodically Poled Rubidium Exchanged KTP Waveguides.” <i>Optics Express</i> 28, no. 22 (2020). <a href=\"https://doi.org/10.1364/oe.399483\">https://doi.org/10.1364/oe.399483</a>.","ama":"Eigner C, Padberg L, Santandrea M, Herrmann H, Brecht B, Silberhorn C. Spatially single mode photon pair source at 800 nm in periodically poled Rubidium exchanged KTP waveguides. <i>Optics Express</i>. 2020;28(22). doi:<a href=\"https://doi.org/10.1364/oe.399483\">10.1364/oe.399483</a>"},"intvolume":"        28","year":"2020","issue":"22","publication_status":"published","publication_identifier":{"issn":["1094-4087"]}},{"publication":"Surface Science Reports","type":"journal_article","status":"public","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"429"},{"_id":"230"},{"_id":"35"}],"user_id":"16199","_id":"17067","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"name":"TRR 142: TRR 142","_id":"53"},{"name":"TRR 142 - B: TRR 142 - Project Area B","_id":"55"},{"name":"TRR 142 - B4: TRR 142 - Subproject B4","_id":"69"}],"language":[{"iso":"eng"}],"article_number":"100480","issue":"1","publication_identifier":{"issn":["0167-5729"]},"publication_status":"published","intvolume":"        75","citation":{"ieee":"E. Speiser, N. Esser, B. Halbig, J. Geurts, W. G. Schmidt, and S. Sanna, “Vibrational Raman spectroscopy on adsorbate-induced low-dimensional surface structures,” <i>Surface Science Reports</i>, vol. 75, no. 1, Art. no. 100480, 2020, doi: <a href=\"https://doi.org/10.1016/j.surfrep.2020.100480\">10.1016/j.surfrep.2020.100480</a>.","chicago":"Speiser, Eugen, Norbert Esser, Benedikt Halbig, Jean Geurts, Wolf Gero Schmidt, and Simone Sanna. “Vibrational Raman Spectroscopy on Adsorbate-Induced Low-Dimensional Surface Structures.” <i>Surface Science Reports</i> 75, no. 1 (2020). <a href=\"https://doi.org/10.1016/j.surfrep.2020.100480\">https://doi.org/10.1016/j.surfrep.2020.100480</a>.","ama":"Speiser E, Esser N, Halbig B, Geurts J, Schmidt WG, Sanna S. Vibrational Raman spectroscopy on adsorbate-induced low-dimensional surface structures. <i>Surface Science Reports</i>. 2020;75(1). doi:<a href=\"https://doi.org/10.1016/j.surfrep.2020.100480\">10.1016/j.surfrep.2020.100480</a>","bibtex":"@article{Speiser_Esser_Halbig_Geurts_Schmidt_Sanna_2020, title={Vibrational Raman spectroscopy on adsorbate-induced low-dimensional surface structures}, volume={75}, DOI={<a href=\"https://doi.org/10.1016/j.surfrep.2020.100480\">10.1016/j.surfrep.2020.100480</a>}, number={1100480}, journal={Surface Science Reports}, author={Speiser, Eugen and Esser, Norbert and Halbig, Benedikt and Geurts, Jean and Schmidt, Wolf Gero and Sanna, Simone}, year={2020} }","short":"E. Speiser, N. Esser, B. Halbig, J. Geurts, W.G. Schmidt, S. Sanna, Surface Science Reports 75 (2020).","mla":"Speiser, Eugen, et al. “Vibrational Raman Spectroscopy on Adsorbate-Induced Low-Dimensional Surface Structures.” <i>Surface Science Reports</i>, vol. 75, no. 1, 100480, 2020, doi:<a href=\"https://doi.org/10.1016/j.surfrep.2020.100480\">10.1016/j.surfrep.2020.100480</a>.","apa":"Speiser, E., Esser, N., Halbig, B., Geurts, J., Schmidt, W. G., &#38; Sanna, S. (2020). Vibrational Raman spectroscopy on adsorbate-induced low-dimensional surface structures. <i>Surface Science Reports</i>, <i>75</i>(1), Article 100480. <a href=\"https://doi.org/10.1016/j.surfrep.2020.100480\">https://doi.org/10.1016/j.surfrep.2020.100480</a>"},"year":"2020","volume":75,"date_created":"2020-05-29T09:52:49Z","author":[{"first_name":"Eugen","full_name":"Speiser, Eugen","last_name":"Speiser"},{"full_name":"Esser, Norbert","last_name":"Esser","first_name":"Norbert"},{"last_name":"Halbig","full_name":"Halbig, Benedikt","first_name":"Benedikt"},{"first_name":"Jean","last_name":"Geurts","full_name":"Geurts, Jean"},{"orcid":"0000-0002-2717-5076","last_name":"Schmidt","full_name":"Schmidt, Wolf Gero","id":"468","first_name":"Wolf Gero"},{"first_name":"Simone","last_name":"Sanna","full_name":"Sanna, Simone"}],"date_updated":"2023-04-20T14:17:42Z","doi":"10.1016/j.surfrep.2020.100480","title":"Vibrational Raman spectroscopy on adsorbate-induced low-dimensional surface structures"},{"type":"journal_article","status":"public","department":[{"_id":"170"},{"_id":"230"},{"_id":"429"},{"_id":"15"},{"_id":"297"},{"_id":"705"},{"_id":"35"}],"user_id":"16199","_id":"20582","project":[{"name":"TRR 142","_id":"53"},{"name":"TRR 142 - Project Area A","_id":"54"},{"_id":"61","name":"TRR 142 - Subproject A4"}],"article_type":"original","publication_status":"published","page":"245309","intvolume":"       101","citation":{"ama":"Berger B, Schmidt D, Ma X, et al. Formation dynamics of exciton-polariton vortices created by nonresonant annular pumping. <i>Physical Review B</i>. 2020;101(24):245309. doi:<a href=\"https://doi.org/10.1103/PhysRevB.101.245309\">10.1103/PhysRevB.101.245309</a>","ieee":"B. Berger <i>et al.</i>, “Formation dynamics of exciton-polariton vortices created by nonresonant annular pumping,” <i>Physical Review B</i>, vol. 101, no. 24, p. 245309, 2020, doi: <a href=\"https://doi.org/10.1103/PhysRevB.101.245309\">10.1103/PhysRevB.101.245309</a>.","chicago":"Berger, Bernd, Daniel Schmidt, Xuekai Ma, Stefan Schumacher, Christian Schneider, Sven Höfling, and Marc Assmann. “Formation Dynamics of Exciton-Polariton Vortices Created by Nonresonant Annular Pumping.” <i>Physical Review B</i> 101, no. 24 (2020): 245309. <a href=\"https://doi.org/10.1103/PhysRevB.101.245309\">https://doi.org/10.1103/PhysRevB.101.245309</a>.","apa":"Berger, B., Schmidt, D., Ma, X., Schumacher, S., Schneider, C., Höfling, S., &#38; Assmann, M. (2020). Formation dynamics of exciton-polariton vortices created by nonresonant annular pumping. <i>Physical Review B</i>, <i>101</i>(24), 245309. <a href=\"https://doi.org/10.1103/PhysRevB.101.245309\">https://doi.org/10.1103/PhysRevB.101.245309</a>","short":"B. Berger, D. Schmidt, X. Ma, S. Schumacher, C. Schneider, S. Höfling, M. Assmann, Physical Review B 101 (2020) 245309.","mla":"Berger, Bernd, et al. “Formation Dynamics of Exciton-Polariton Vortices Created by Nonresonant Annular Pumping.” <i>Physical Review B</i>, vol. 101, no. 24, American Physical Society, 2020, p. 245309, doi:<a href=\"https://doi.org/10.1103/PhysRevB.101.245309\">10.1103/PhysRevB.101.245309</a>.","bibtex":"@article{Berger_Schmidt_Ma_Schumacher_Schneider_Höfling_Assmann_2020, title={Formation dynamics of exciton-polariton vortices created by nonresonant annular pumping}, volume={101}, DOI={<a href=\"https://doi.org/10.1103/PhysRevB.101.245309\">10.1103/PhysRevB.101.245309</a>}, number={24}, journal={Physical Review B}, publisher={American Physical Society}, author={Berger, Bernd and Schmidt, Daniel and Ma, Xuekai and Schumacher, Stefan and Schneider, Christian and Höfling, Sven and Assmann, Marc}, year={2020}, pages={245309} }"},"volume":101,"author":[{"last_name":"Berger","full_name":"Berger, Bernd","first_name":"Bernd"},{"full_name":"Schmidt, Daniel","last_name":"Schmidt","first_name":"Daniel"},{"first_name":"Xuekai","full_name":"Ma, Xuekai","id":"59416","last_name":"Ma"},{"full_name":"Schumacher, Stefan","id":"27271","last_name":"Schumacher","orcid":"0000-0003-4042-4951","first_name":"Stefan"},{"first_name":"Christian","full_name":"Schneider, Christian","last_name":"Schneider"},{"full_name":"Höfling, Sven","last_name":"Höfling","first_name":"Sven"},{"last_name":"Assmann","full_name":"Assmann, Marc","first_name":"Marc"}],"date_updated":"2023-04-20T15:40:33Z","doi":"10.1103/PhysRevB.101.245309","publication":"Physical Review B","language":[{"iso":"eng"}],"issue":"24","year":"2020","date_created":"2020-12-02T09:10:54Z","publisher":"American Physical Society","title":"Formation dynamics of exciton-polariton vortices created by nonresonant annular pumping"},{"doi":"10.1103/PhysRevResearch.2.043002","volume":2,"author":[{"first_name":"Falko","full_name":"Schmidt, Falko","id":"35251","last_name":"Schmidt","orcid":"0000-0002-5071-5528"},{"first_name":"Agnieszka L.","orcid":"https://orcid.org/0000-0001-6584-0201","last_name":"Kozub","full_name":"Kozub, Agnieszka L.","id":"77566"},{"last_name":"Biktagirov","full_name":"Biktagirov, Timur","id":"65612","first_name":"Timur"},{"orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","id":"13244","full_name":"Eigner, Christof","first_name":"Christof"},{"id":"26263","full_name":"Silberhorn, Christine","last_name":"Silberhorn","first_name":"Christine"},{"last_name":"Schindlmayr","orcid":"0000-0002-4855-071X","id":"458","full_name":"Schindlmayr, Arno","first_name":"Arno"},{"last_name":"Schmidt","orcid":"0000-0002-2717-5076","id":"468","full_name":"Schmidt, Wolf Gero","first_name":"Wolf Gero"},{"orcid":"0000-0002-4476-223X","last_name":"Gerstmann","id":"171","full_name":"Gerstmann, Uwe","first_name":"Uwe"}],"oa":"1","date_updated":"2023-04-20T16:06:21Z","intvolume":"         2","citation":{"apa":"Schmidt, F., Kozub, A. L., Biktagirov, T., Eigner, C., Silberhorn, C., Schindlmayr, A., Schmidt, W. G., &#38; Gerstmann, U. (2020). Free and defect-bound (bi)polarons in LiNbO3: Atomic structure and spectroscopic signatures from ab initio calculations. <i>Physical Review Research</i>, <i>2</i>(4), Article 043002. <a href=\"https://doi.org/10.1103/PhysRevResearch.2.043002\">https://doi.org/10.1103/PhysRevResearch.2.043002</a>","bibtex":"@article{Schmidt_Kozub_Biktagirov_Eigner_Silberhorn_Schindlmayr_Schmidt_Gerstmann_2020, title={Free and defect-bound (bi)polarons in LiNbO3: Atomic structure and spectroscopic signatures from ab initio calculations}, volume={2}, DOI={<a href=\"https://doi.org/10.1103/PhysRevResearch.2.043002\">10.1103/PhysRevResearch.2.043002</a>}, number={4043002}, journal={Physical Review Research}, publisher={American Physical Society}, author={Schmidt, Falko and Kozub, Agnieszka L. and Biktagirov, Timur and Eigner, Christof and Silberhorn, Christine and Schindlmayr, Arno and Schmidt, Wolf Gero and Gerstmann, Uwe}, year={2020} }","short":"F. Schmidt, A.L. Kozub, T. Biktagirov, C. Eigner, C. Silberhorn, A. Schindlmayr, W.G. Schmidt, U. Gerstmann, Physical Review Research 2 (2020).","mla":"Schmidt, Falko, et al. “Free and Defect-Bound (Bi)Polarons in LiNbO3: Atomic Structure and Spectroscopic Signatures from Ab Initio Calculations.” <i>Physical Review Research</i>, vol. 2, no. 4, 043002, American Physical Society, 2020, doi:<a href=\"https://doi.org/10.1103/PhysRevResearch.2.043002\">10.1103/PhysRevResearch.2.043002</a>.","ama":"Schmidt F, Kozub AL, Biktagirov T, et al. Free and defect-bound (bi)polarons in LiNbO3: Atomic structure and spectroscopic signatures from ab initio calculations. <i>Physical Review Research</i>. 2020;2(4). doi:<a href=\"https://doi.org/10.1103/PhysRevResearch.2.043002\">10.1103/PhysRevResearch.2.043002</a>","ieee":"F. Schmidt <i>et al.</i>, “Free and defect-bound (bi)polarons in LiNbO3: Atomic structure and spectroscopic signatures from ab initio calculations,” <i>Physical Review Research</i>, vol. 2, no. 4, Art. no. 043002, 2020, doi: <a href=\"https://doi.org/10.1103/PhysRevResearch.2.043002\">10.1103/PhysRevResearch.2.043002</a>.","chicago":"Schmidt, Falko, Agnieszka L. Kozub, Timur Biktagirov, Christof Eigner, Christine Silberhorn, Arno Schindlmayr, Wolf Gero Schmidt, and Uwe Gerstmann. “Free and Defect-Bound (Bi)Polarons in LiNbO3: Atomic Structure and Spectroscopic Signatures from Ab Initio Calculations.” <i>Physical Review Research</i> 2, no. 4 (2020). <a href=\"https://doi.org/10.1103/PhysRevResearch.2.043002\">https://doi.org/10.1103/PhysRevResearch.2.043002</a>."},"publication_identifier":{"eissn":["2643-1564"]},"has_accepted_license":"1","publication_status":"published","file_date_updated":"2020-10-02T07:37:24Z","article_number":"043002","isi":"1","article_type":"original","department":[{"_id":"296"},{"_id":"230"},{"_id":"429"},{"_id":"295"},{"_id":"288"},{"_id":"15"},{"_id":"170"},{"_id":"35"},{"_id":"790"}],"user_id":"16199","_id":"19190","project":[{"_id":"53","name":"TRR 142"},{"_id":"55","name":"TRR 142 - Project Area B"},{"_id":"69","name":"TRR 142 - Subproject B4"},{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"status":"public","type":"journal_article","title":"Free and defect-bound (bi)polarons in LiNbO3: Atomic structure and spectroscopic signatures from ab initio calculations","date_created":"2020-09-09T09:35:21Z","publisher":"American Physical Society","year":"2020","issue":"4","quality_controlled":"1","language":[{"iso":"eng"}],"ddc":["530"],"external_id":{"isi":["000604206300002"]},"file":[{"relation":"main_file","file_id":"19843","access_level":"open_access","description":"Creative Commons Attribution 4.0 International Public License (CC BY 4.0)","title":"Free and defect-bound (bi)polarons in LiNbO3: Atomic structure and spectroscopic signatures from ab initio calculations","date_created":"2020-10-02T07:27:38Z","date_updated":"2020-10-02T07:37:24Z","content_type":"application/pdf","file_name":"PhysRevResearch.2.043002.pdf","file_size":1955183,"creator":"schindlm"}],"abstract":[{"text":"Polarons in dielectric crystals play a crucial role for applications in integrated electronics and optoelectronics. In this work, we use density-functional theory and Green's function methods to explore the microscopic structure and spectroscopic signatures of electron polarons in lithium niobate (LiNbO3). Total-energy calculations and the comparison of calculated electron paramagnetic resonance data with available measurements reveal the formation of bound \r\npolarons at Nb_Li antisite defects with a quasi-Jahn-Teller distorted, tilted configuration. The defect-formation energies further indicate that (bi)polarons may form not only at \r\nNb_Li antisites but also at structures where the antisite Nb atom moves into a neighboring empty oxygen octahedron. Based on these structure models, and on the calculated charge-transition levels and potential-energy barriers, we propose two mechanisms for the optical and thermal splitting of bipolarons, which provide a natural explanation for the reported two-path recombination of bipolarons. Optical-response calculations based on the Bethe-Salpeter equation, in combination with available experimental data and new measurements of the optical absorption spectrum, further corroborate the geometries proposed here for free and defect-bound (bi)polarons.","lang":"eng"}],"publication":"Physical Review Research"},{"status":"public","type":"journal_article","article_number":"184108","department":[{"_id":"170"},{"_id":"295"},{"_id":"429"},{"_id":"15"},{"_id":"790"},{"_id":"35"}],"user_id":"16199","_id":"40444","project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"_id":"53","name":"TRR 142: TRR 142"},{"_id":"55","name":"TRR 142 - B: TRR 142 - Project Area B"},{"name":"TRR 142 - B03: TRR 142 - Subproject B03","_id":"68"}],"intvolume":"       101","citation":{"ieee":"H. J. von Bardeleben, E. Rauls, and U. Gerstmann, “Carbon vacancy-related centers in &#60;mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"&#62;&#60;mml:mn&#62;3&#60;/mml:mn&#62;&#60;mml:mi&#62;C&#60;/mml:mi&#62;&#60;/mml:math&#62;-silicon carbide: Negative-&#60;mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"&#62;&#60;mml:mi&#62;U&#60;/mml:mi&#62;&#60;/mml:math&#62; properties and structural transformation,” <i>Physical Review B</i>, vol. 101, no. 18, Art. no. 184108, 2020, doi: <a href=\"https://doi.org/10.1103/physrevb.101.184108\">10.1103/physrevb.101.184108</a>.","chicago":"Bardeleben, H. J. von, E. Rauls, and Uwe Gerstmann. “Carbon Vacancy-Related Centers in &#60;mml:Math Xmlns:Mml=\"http://Www.W3.Org/1998/Math/MathML\"&#62;&#60;mml:Mn&#62;3&#60;/Mml:Mn&#62;&#60;mml:Mi&#62;C&#60;/Mml:Mi&#62;&#60;/Mml:Math&#62;-Silicon Carbide: Negative-&#60;mml:Math Xmlns:Mml=\"http://Www.W3.Org/1998/Math/MathML\"&#62;&#60;mml:Mi&#62;U&#60;/Mml:Mi&#62;&#60;/Mml:Math&#62; Properties and Structural Transformation.” <i>Physical Review B</i> 101, no. 18 (2020). <a href=\"https://doi.org/10.1103/physrevb.101.184108\">https://doi.org/10.1103/physrevb.101.184108</a>.","ama":"von Bardeleben HJ, Rauls E, Gerstmann U. Carbon vacancy-related centers in &#60;mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"&#62;&#60;mml:mn&#62;3&#60;/mml:mn&#62;&#60;mml:mi&#62;C&#60;/mml:mi&#62;&#60;/mml:math&#62;-silicon carbide: Negative-&#60;mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"&#62;&#60;mml:mi&#62;U&#60;/mml:mi&#62;&#60;/mml:math&#62; properties and structural transformation. <i>Physical Review B</i>. 2020;101(18). doi:<a href=\"https://doi.org/10.1103/physrevb.101.184108\">10.1103/physrevb.101.184108</a>","bibtex":"@article{von Bardeleben_Rauls_Gerstmann_2020, title={Carbon vacancy-related centers in &#60;mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"&#62;&#60;mml:mn&#62;3&#60;/mml:mn&#62;&#60;mml:mi&#62;C&#60;/mml:mi&#62;&#60;/mml:math&#62;-silicon carbide: Negative-&#60;mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"&#62;&#60;mml:mi&#62;U&#60;/mml:mi&#62;&#60;/mml:math&#62; properties and structural transformation}, volume={101}, DOI={<a href=\"https://doi.org/10.1103/physrevb.101.184108\">10.1103/physrevb.101.184108</a>}, number={18184108}, journal={Physical Review B}, publisher={American Physical Society (APS)}, author={von Bardeleben, H. J. and Rauls, E. and Gerstmann, Uwe}, year={2020} }","mla":"von Bardeleben, H. J., et al. “Carbon Vacancy-Related Centers in &#60;mml:Math Xmlns:Mml=\"http://Www.W3.Org/1998/Math/MathML\"&#62;&#60;mml:Mn&#62;3&#60;/Mml:Mn&#62;&#60;mml:Mi&#62;C&#60;/Mml:Mi&#62;&#60;/Mml:Math&#62;-Silicon Carbide: Negative-&#60;mml:Math Xmlns:Mml=\"http://Www.W3.Org/1998/Math/MathML\"&#62;&#60;mml:Mi&#62;U&#60;/Mml:Mi&#62;&#60;/Mml:Math&#62; Properties and Structural Transformation.” <i>Physical Review B</i>, vol. 101, no. 18, 184108, American Physical Society (APS), 2020, doi:<a href=\"https://doi.org/10.1103/physrevb.101.184108\">10.1103/physrevb.101.184108</a>.","short":"H.J. von Bardeleben, E. Rauls, U. Gerstmann, Physical Review B 101 (2020).","apa":"von Bardeleben, H. J., Rauls, E., &#38; Gerstmann, U. (2020). Carbon vacancy-related centers in &#60;mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"&#62;&#60;mml:mn&#62;3&#60;/mml:mn&#62;&#60;mml:mi&#62;C&#60;/mml:mi&#62;&#60;/mml:math&#62;-silicon carbide: Negative-&#60;mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"&#62;&#60;mml:mi&#62;U&#60;/mml:mi&#62;&#60;/mml:math&#62; properties and structural transformation. <i>Physical Review B</i>, <i>101</i>(18), Article 184108. <a href=\"https://doi.org/10.1103/physrevb.101.184108\">https://doi.org/10.1103/physrevb.101.184108</a>"},"publication_identifier":{"issn":["2469-9950","2469-9969"]},"publication_status":"published","doi":"10.1103/physrevb.101.184108","volume":101,"author":[{"last_name":"von Bardeleben","full_name":"von Bardeleben, H. J.","first_name":"H. 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Hannes and T. Meier, “k.p-based multiband simulations of non-degenerate two-photon absorption in bulk GaAs,” in <i>Ultrafast Phenomena and Nanophotonics XXIV</i>, 2020, vol. 11278, p. 112780S, doi: <a href=\"https://doi.org/10.1117/12.2545924\">10.1117/12.2545924</a>.","chicago":"Hannes, Wolf-Rüdiger, and Torsten Meier. “K.p-Based Multiband Simulations of Non-Degenerate Two-Photon Absorption in Bulk GaAs.” In <i>Ultrafast Phenomena and Nanophotonics XXIV</i>, edited by Markus Betz and Abdulhakem Y. Elezzabi, 11278:112780S. SPIE Proceedings, 2020. <a href=\"https://doi.org/10.1117/12.2545924\">https://doi.org/10.1117/12.2545924</a>.","ama":"Hannes W-R, Meier T. k.p-based multiband simulations of non-degenerate two-photon absorption in bulk GaAs. In: Betz M, Elezzabi AY, eds. <i>Ultrafast Phenomena and Nanophotonics XXIV</i>. Vol 11278. SPIE Proceedings. ; 2020:112780S. doi:<a href=\"https://doi.org/10.1117/12.2545924\">10.1117/12.2545924</a>","bibtex":"@inproceedings{Hannes_Meier_2020, series={SPIE Proceedings}, title={k.p-based multiband simulations of non-degenerate two-photon absorption in bulk GaAs}, volume={11278}, DOI={<a href=\"https://doi.org/10.1117/12.2545924\">10.1117/12.2545924</a>}, booktitle={Ultrafast Phenomena and Nanophotonics XXIV}, author={Hannes, Wolf-Rüdiger and Meier, Torsten}, editor={Betz, Markus and Elezzabi, Abdulhakem Y.}, year={2020}, pages={112780S}, collection={SPIE Proceedings} }","mla":"Hannes, Wolf-Rüdiger, and Torsten Meier. “K.p-Based Multiband Simulations of Non-Degenerate Two-Photon Absorption in Bulk GaAs.” <i>Ultrafast Phenomena and Nanophotonics XXIV</i>, edited by Markus Betz and Abdulhakem Y. Elezzabi, vol. 11278, 2020, p. 112780S, doi:<a href=\"https://doi.org/10.1117/12.2545924\">10.1117/12.2545924</a>.","short":"W.-R. Hannes, T. Meier, in: M. Betz, A.Y. 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Fu, Nano Letters 20 (2020) 7550–7557.","mla":"Ren, J., et al. “Efficient Bosonic Condensation of Exciton Polaritons in an H-Aggregate Organic Single-Crystal Microcavity.” <i>Nano Letters</i>, vol. 20, no. 10, 2020, pp. 7550–57, doi:<a href=\"https://doi.org/10.1021/acs.nanolett.0c03009\">10.1021/acs.nanolett.0c03009</a>.","chicago":"Ren, J, Q Liao, H Huang, Y Li, T Gao, Xuekai Ma, Stefan Schumacher, J Yao, S Bai, and H Fu. “Efficient Bosonic Condensation of Exciton Polaritons in an H-Aggregate Organic Single-Crystal Microcavity.” <i>Nano Letters</i> 20, no. 10 (2020): 7550–57. <a href=\"https://doi.org/10.1021/acs.nanolett.0c03009\">https://doi.org/10.1021/acs.nanolett.0c03009</a>.","ieee":"J. Ren <i>et al.</i>, “Efficient Bosonic Condensation of Exciton Polaritons in an H-Aggregate Organic Single-Crystal Microcavity.,” <i>Nano Letters</i>, vol. 20, no. 10, pp. 7550–7557, 2020, doi: <a href=\"https://doi.org/10.1021/acs.nanolett.0c03009\">10.1021/acs.nanolett.0c03009</a>.","ama":"Ren J, Liao Q, Huang H, et al. Efficient Bosonic Condensation of Exciton Polaritons in an H-Aggregate Organic Single-Crystal Microcavity. <i>Nano Letters</i>. 2020;20(10):7550-7557. doi:<a href=\"https://doi.org/10.1021/acs.nanolett.0c03009\">10.1021/acs.nanolett.0c03009</a>"},"external_id":{"pmid":["32986448"]},"language":[{"iso":"eng"}],"publication":"Nano Letters","date_created":"2020-12-02T09:23:11Z","title":"Efficient Bosonic Condensation of Exciton Polaritons in an H-Aggregate Organic Single-Crystal Microcavity.","issue":"10","year":"2020"},{"status":"public","type":"journal_article","article_type":"letter_note","user_id":"16199","department":[{"_id":"230"},{"_id":"429"},{"_id":"15"},{"_id":"170"},{"_id":"705"},{"_id":"297"},{"_id":"35"}],"project":[{"name":"TRR 142","_id":"53"},{"name":"TRR 142 - Project Area A","_id":"54"},{"name":"TRR 142 - Subproject A4","_id":"61"},{"name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen","_id":"53"}],"_id":"20585","citation":{"ama":"Ma X, Kartashov Y, Ferrando A, Schumacher S. Topological edge states of nonequilibrium polaritons in hollow honeycomb arrays. <i>Optics Letters</i>. 2020;45(19):5311-5314. doi:<a href=\"https://doi.org/10.1364/ol.405844\">10.1364/ol.405844</a>","ieee":"X. Ma, Y. Kartashov, A. Ferrando, and S. Schumacher, “Topological edge states of nonequilibrium polaritons in hollow honeycomb arrays.,” <i>Optics Letters</i>, vol. 45, no. 19, pp. 5311–5314, 2020, doi: <a href=\"https://doi.org/10.1364/ol.405844\">10.1364/ol.405844</a>.","chicago":"Ma, Xuekai, YV Kartashov, A Ferrando, and Stefan Schumacher. “Topological Edge States of Nonequilibrium Polaritons in Hollow Honeycomb Arrays.” <i>Optics Letters</i> 45, no. 19 (2020): 5311–14. <a href=\"https://doi.org/10.1364/ol.405844\">https://doi.org/10.1364/ol.405844</a>.","mla":"Ma, Xuekai, et al. “Topological Edge States of Nonequilibrium Polaritons in Hollow Honeycomb Arrays.” <i>Optics Letters</i>, vol. 45, no. 19, 2020, pp. 5311–14, doi:<a href=\"https://doi.org/10.1364/ol.405844\">10.1364/ol.405844</a>.","bibtex":"@article{Ma_Kartashov_Ferrando_Schumacher_2020, title={Topological edge states of nonequilibrium polaritons in hollow honeycomb arrays.}, volume={45}, DOI={<a href=\"https://doi.org/10.1364/ol.405844\">10.1364/ol.405844</a>}, number={19}, journal={Optics Letters}, author={Ma, Xuekai and Kartashov, YV and Ferrando, A and Schumacher, Stefan}, year={2020}, pages={5311–5314} }","short":"X. 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Topological edge states of nonequilibrium polaritons in hollow honeycomb arrays. <i>Optics Letters</i>, <i>45</i>(19), 5311–5314. <a href=\"https://doi.org/10.1364/ol.405844\">https://doi.org/10.1364/ol.405844</a>"},"intvolume":"        45","page":"5311-5314","publication_status":"published","pmid":"1","publication_identifier":{"issn":["0146-9592","1539-4794"]},"doi":"10.1364/ol.405844","author":[{"first_name":"Xuekai","last_name":"Ma","full_name":"Ma, Xuekai","id":"59416"},{"first_name":"YV","full_name":"Kartashov, YV","last_name":"Kartashov"},{"full_name":"Ferrando, A","last_name":"Ferrando","first_name":"A"},{"full_name":"Schumacher, Stefan","id":"27271","orcid":"0000-0003-4042-4951","last_name":"Schumacher","first_name":"Stefan"}],"volume":45,"date_updated":"2025-12-05T13:48:35Z","publication":"Optics Letters","language":[{"iso":"eng"}],"external_id":{"pmid":["33001881"]},"year":"2020","issue":"19","title":"Topological edge states of nonequilibrium polaritons in hollow honeycomb arrays.","date_created":"2020-12-02T09:27:25Z"},{"publication_identifier":{"issn":["0146-9592","1539-4794"]},"pmid":"1","publication_status":"published","intvolume":"        45","page":"1192-1195","citation":{"ama":"Barkhausen F, Schumacher S, Ma X. Multistable circular currents of polariton condensates trapped in ring potentials. <i>Optics Letters</i>. 2020;45(5):1192-1195. doi:<a href=\"https://doi.org/10.1364/ol.386250\">10.1364/ol.386250</a>","ieee":"F. Barkhausen, S. Schumacher, and X. Ma, “Multistable circular currents of polariton condensates trapped in ring potentials.,” <i>Optics Letters</i>, vol. 45, no. 5, pp. 1192–1195, 2020, doi: <a href=\"https://doi.org/10.1364/ol.386250\">10.1364/ol.386250</a>.","chicago":"Barkhausen, F, Stefan Schumacher, and Xuekai Ma. “Multistable Circular Currents of Polariton Condensates Trapped in Ring Potentials.” <i>Optics Letters</i> 45, no. 5 (2020): 1192–95. <a href=\"https://doi.org/10.1364/ol.386250\">https://doi.org/10.1364/ol.386250</a>.","apa":"Barkhausen, F., Schumacher, S., &#38; Ma, X. (2020). 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