[{"title":"Pyroelectric influence on lithium niobate during the thermal transition for cryogenic integrated photonics","publication_status":"published","publication_identifier":{"issn":["2633-4356"]},"date_updated":"2024-03-04T13:20:43Z","doi":"10.1088/2633-4356/ad207d","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Abstract\r\n Lithium niobate has emerged as a promising platform for integrated quantum optics, enabling efficient generation, manipulation, and detection of quantum states of light. However, integrating single-photon detectors requires cryogenic operating temperatures, since the best performing detectors are based on narrow superconducting wires. While previous studies have demonstrated the operation of quantum light sources and electro-optic modulators in LiNbO3 at cryogenic temperatures, the thermal transition between room temperature and cryogenic conditions introduces additional effects that can significantly influence device performance. In this paper, we investigate the generation of pyroelectric charges and their impact on the optical properties of lithium niobate waveguides when changing from room temperature to 25 K, and vice versa. We measure the generated pyroelectric charge flow and correlate this with fast changes in the birefringence acquired through the Sénarmont-method. Both electrical and optical influence of the pyroelectric effect occur predominantly at temperatures above 100 K."}],"user_id":"50819","author":[{"last_name":"Thiele","id":"50819","first_name":"Frederik","full_name":"Thiele, Frederik","orcid":"0000-0003-0663-5587"},{"last_name":"Hummel","id":"83846","first_name":"Thomas","full_name":"Hummel, Thomas"},{"first_name":"Nina Amelie","orcid":"0000-0001-6624-7098","full_name":"Lange, Nina Amelie","last_name":"Lange","id":"56843"},{"last_name":"Dreher","first_name":"Felix","full_name":"Dreher, Felix"},{"last_name":"Protte","full_name":"Protte, Maximilian","first_name":"Maximilian"},{"full_name":"Bruch, Felix vom","first_name":"Felix vom","last_name":"Bruch"},{"last_name":"Lengeling","id":"44373","first_name":"Sebastian","full_name":"Lengeling, Sebastian"},{"id":"216","last_name":"Herrmann","full_name":"Herrmann, Harald","first_name":"Harald"},{"first_name":"Christof","orcid":"https://orcid.org/0000-0002-5693-3083","full_name":"Eigner, Christof","last_name":"Eigner","id":"13244"},{"first_name":"Christine","full_name":"Silberhorn, Christine","last_name":"Silberhorn","id":"26263"},{"last_name":"Bartley","id":"49683","first_name":"Tim","full_name":"Bartley, Tim"}],"publisher":"IOP Publishing","publication":"Materials for Quantum Technology","keyword":["General Earth and Planetary Sciences","General Environmental Science"],"status":"public","date_created":"2024-02-16T07:56:44Z","volume":4,"intvolume":" 4","_id":"51356","issue":"1","article_number":"015402","type":"journal_article","citation":{"ama":"Thiele F, Hummel T, Lange NA, et al. Pyroelectric influence on lithium niobate during the thermal transition for cryogenic integrated photonics. Materials for Quantum Technology. 2024;4(1). doi:10.1088/2633-4356/ad207d","apa":"Thiele, F., Hummel, T., Lange, N. A., Dreher, F., Protte, M., Bruch, F. vom, Lengeling, S., Herrmann, H., Eigner, C., Silberhorn, C., & Bartley, T. (2024). Pyroelectric influence on lithium niobate during the thermal transition for cryogenic integrated photonics. Materials for Quantum Technology, 4(1), Article 015402. https://doi.org/10.1088/2633-4356/ad207d","chicago":"Thiele, Frederik, Thomas Hummel, Nina Amelie Lange, Felix Dreher, Maximilian Protte, Felix vom Bruch, Sebastian Lengeling, et al. “Pyroelectric Influence on Lithium Niobate during the Thermal Transition for Cryogenic Integrated Photonics.” Materials for Quantum Technology 4, no. 1 (2024). https://doi.org/10.1088/2633-4356/ad207d.","mla":"Thiele, Frederik, et al. “Pyroelectric Influence on Lithium Niobate during the Thermal Transition for Cryogenic Integrated Photonics.” Materials for Quantum Technology, vol. 4, no. 1, 015402, IOP Publishing, 2024, doi:10.1088/2633-4356/ad207d.","bibtex":"@article{Thiele_Hummel_Lange_Dreher_Protte_Bruch_Lengeling_Herrmann_Eigner_Silberhorn_et al._2024, title={Pyroelectric influence on lithium niobate during the thermal transition for cryogenic integrated photonics}, volume={4}, DOI={10.1088/2633-4356/ad207d}, number={1015402}, journal={Materials for Quantum Technology}, publisher={IOP Publishing}, author={Thiele, Frederik and Hummel, Thomas and Lange, Nina Amelie and Dreher, Felix and Protte, Maximilian and Bruch, Felix vom and Lengeling, Sebastian and Herrmann, Harald and Eigner, Christof and Silberhorn, Christine and et al.}, year={2024} }","short":"F. Thiele, T. Hummel, N.A. Lange, F. Dreher, M. Protte, F. vom Bruch, S. Lengeling, H. Herrmann, C. Eigner, C. Silberhorn, T. Bartley, Materials for Quantum Technology 4 (2024).","ieee":"F. Thiele et al., “Pyroelectric influence on lithium niobate during the thermal transition for cryogenic integrated photonics,” Materials for Quantum Technology, vol. 4, no. 1, Art. no. 015402, 2024, doi: 10.1088/2633-4356/ad207d."},"year":"2024"},{"intvolume":" 4","_id":"44081","issue":"2","article_number":"020306","year":"2023","type":"journal_article","citation":{"ieee":"L. Serino et al., “Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States,” PRX Quantum, vol. 4, no. 2, Art. no. 020306, 2023, doi: 10.1103/prxquantum.4.020306.","short":"L. Serino, J. Gil López, M. Stefszky, R. Ricken, C. Eigner, B. Brecht, C. Silberhorn, PRX Quantum 4 (2023).","mla":"Serino, Laura, et al. “Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States.” PRX Quantum, vol. 4, no. 2, 020306, American Physical Society (APS), 2023, doi:10.1103/prxquantum.4.020306.","bibtex":"@article{Serino_Gil López_Stefszky_Ricken_Eigner_Brecht_Silberhorn_2023, title={Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States}, volume={4}, DOI={10.1103/prxquantum.4.020306}, number={2020306}, journal={PRX Quantum}, publisher={American Physical Society (APS)}, author={Serino, Laura and Gil López, Jano and Stefszky, Michael and Ricken, Raimund and Eigner, Christof and Brecht, Benjamin and Silberhorn, Christine}, year={2023} }","chicago":"Serino, Laura, Jano Gil López, Michael Stefszky, Raimund Ricken, Christof Eigner, Benjamin Brecht, and Christine Silberhorn. “Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States.” PRX Quantum 4, no. 2 (2023). https://doi.org/10.1103/prxquantum.4.020306.","apa":"Serino, L., Gil López, J., Stefszky, M., Ricken, R., Eigner, C., Brecht, B., & Silberhorn, C. (2023). Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States. PRX Quantum, 4(2), Article 020306. https://doi.org/10.1103/prxquantum.4.020306","ama":"Serino L, Gil López J, Stefszky M, et al. Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States. PRX Quantum. 2023;4(2). doi:10.1103/prxquantum.4.020306"},"user_id":"88242","author":[{"first_name":"Laura","full_name":"Serino, Laura","last_name":"Serino","id":"88242"},{"full_name":"Gil López, Jano","first_name":"Jano","id":"51223","last_name":"Gil López"},{"last_name":"Stefszky","id":"42777","first_name":"Michael","full_name":"Stefszky, Michael"},{"last_name":"Ricken","full_name":"Ricken, Raimund","first_name":"Raimund"},{"orcid":"https://orcid.org/0000-0002-5693-3083","full_name":"Eigner, Christof","first_name":"Christof","id":"13244","last_name":"Eigner"},{"id":"27150","last_name":"Brecht","orcid":"0000-0003-4140-0556 ","full_name":"Brecht, Benjamin","first_name":"Benjamin"},{"last_name":"Silberhorn","id":"26263","first_name":"Christine","full_name":"Silberhorn, Christine"}],"publisher":"American Physical Society (APS)","publication":"PRX Quantum","keyword":["General Physics and Astronomy","Mathematical Physics","Applied Mathematics","Electronic","Optical and Magnetic Materials","Electrical and Electronic Engineering","General Computer Science"],"status":"public","date_created":"2023-04-20T12:38:23Z","volume":4,"date_updated":"2023-04-20T12:44:55Z","doi":"10.1103/prxquantum.4.020306","language":[{"iso":"eng"}],"title":"Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States","department":[{"_id":"288"},{"_id":"623"}],"publication_identifier":{"issn":["2691-3399"]},"publication_status":"published"},{"intvolume":" 31","_id":"45850","issue":"14","article_number":"23140","citation":{"chicago":"Babel, Silia, Laura Bollmers, Marcello Massaro, Kai Hong Luo, Michael Stefszky, Federico Pegoraro, Philip Held, et al. “Demonstration of Hong-Ou-Mandel Interference in an LNOI Directional Coupler.” Optics Express 31, no. 14 (2023). https://doi.org/10.1364/oe.484126.","ama":"Babel S, Bollmers L, Massaro M, et al. Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler. Optics Express. 2023;31(14). doi:10.1364/oe.484126","apa":"Babel, S., Bollmers, L., Massaro, M., Luo, K. H., Stefszky, M., Pegoraro, F., Held, P., Herrmann, H., Eigner, C., Brecht, B., Padberg, L., & Silberhorn, C. (2023). Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler. Optics Express, 31(14), Article 23140. https://doi.org/10.1364/oe.484126","mla":"Babel, Silia, et al. “Demonstration of Hong-Ou-Mandel Interference in an LNOI Directional Coupler.” Optics Express, vol. 31, no. 14, 23140, Optica Publishing Group, 2023, doi:10.1364/oe.484126.","bibtex":"@article{Babel_Bollmers_Massaro_Luo_Stefszky_Pegoraro_Held_Herrmann_Eigner_Brecht_et al._2023, title={Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler}, volume={31}, DOI={10.1364/oe.484126}, number={1423140}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Babel, Silia and Bollmers, Laura and Massaro, Marcello and Luo, Kai Hong and Stefszky, Michael and Pegoraro, Federico and Held, Philip and Herrmann, Harald and Eigner, Christof and Brecht, Benjamin and et al.}, year={2023} }","short":"S. Babel, L. Bollmers, M. Massaro, K.H. Luo, M. Stefszky, F. Pegoraro, P. Held, H. Herrmann, C. Eigner, B. Brecht, L. Padberg, C. Silberhorn, Optics Express 31 (2023).","ieee":"S. Babel et al., “Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler,” Optics Express, vol. 31, no. 14, Art. no. 23140, 2023, doi: 10.1364/oe.484126."},"type":"journal_article","year":"2023","abstract":[{"lang":"eng","text":"Interference between single photons is key for many quantum optics experiments and applications in quantum technologies, such as quantum communication or computation. It is advantageous to operate the systems at telecommunication wavelengths and to integrate the setups for these applications in order to improve stability, compactness and scalability. A new promising material platform for integrated quantum optics is lithium niobate on insulator (LNOI). Here, we realise Hong-Ou-Mandel (HOM) interference between telecom photons from an engineered parametric down-conversion source in an LNOI directional coupler. The coupler has been designed and fabricated in house and provides close to perfect balanced beam splitting. We obtain a raw HOM visibility of (93.5 ± 0.7) %, limited mainly by the source performance and in good agreement with off-chip measurements. This lays the foundation for more sophisticated quantum experiments in LNOI."}],"user_id":"63231","publication":"Optics Express","keyword":["Atomic and Molecular Physics","and Optics"],"author":[{"id":"63231","last_name":"Babel","full_name":"Babel, Silia","orcid":"https://orcid.org/0000-0002-1568-2580","first_name":"Silia"},{"full_name":"Bollmers, Laura","first_name":"Laura","id":"61375","last_name":"Bollmers"},{"first_name":"Marcello","orcid":"0000-0002-2539-7652","full_name":"Massaro, Marcello","last_name":"Massaro","id":"59545"},{"last_name":"Luo","id":"36389","first_name":"Kai Hong","full_name":"Luo, Kai Hong","orcid":"0000-0003-1008-4976"},{"full_name":"Stefszky, Michael","first_name":"Michael","id":"42777","last_name":"Stefszky"},{"full_name":"Pegoraro, Federico","first_name":"Federico","id":"88928","last_name":"Pegoraro"},{"id":"68236","last_name":"Held","full_name":"Held, Philip","first_name":"Philip"},{"id":"216","last_name":"Herrmann","full_name":"Herrmann, Harald","first_name":"Harald"},{"first_name":"Christof","full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","id":"13244"},{"full_name":"Brecht, Benjamin","orcid":"0000-0003-4140-0556 ","first_name":"Benjamin","id":"27150","last_name":"Brecht"},{"last_name":"Padberg","id":"40300","first_name":"Laura","full_name":"Padberg, Laura"},{"last_name":"Silberhorn","id":"26263","first_name":"Christine","full_name":"Silberhorn, Christine"}],"publisher":"Optica Publishing Group","date_created":"2023-07-03T14:08:36Z","status":"public","volume":31,"date_updated":"2023-07-05T07:58:31Z","doi":"10.1364/oe.484126","language":[{"iso":"eng"}],"title":"Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler","department":[{"_id":"15"},{"_id":"230"},{"_id":"623"},{"_id":"288"}],"publication_identifier":{"issn":["1094-4087"]},"publication_status":"published"},{"issue":"10","article_number":"1423","intvolume":" 13","_id":"47997","type":"journal_article","year":"2023","citation":{"ieee":"S. Neufeld et al., “Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family,” Crystals, vol. 13, no. 10, Art. no. 1423, 2023, doi: 10.3390/cryst13101423.","short":"S. Neufeld, U. Gerstmann, L. Padberg, C. Eigner, G. Berth, C. Silberhorn, L.M. Eng, W.G. Schmidt, M. Rüsing, Crystals 13 (2023).","bibtex":"@article{Neufeld_Gerstmann_Padberg_Eigner_Berth_Silberhorn_Eng_Schmidt_Rüsing_2023, title={Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family}, volume={13}, DOI={10.3390/cryst13101423}, number={101423}, journal={Crystals}, publisher={MDPI AG}, author={Neufeld, Sergej and Gerstmann, Uwe and Padberg, Laura and Eigner, Christof and Berth, Gerhard and Silberhorn, Christine and Eng, Lukas M. and Schmidt, Wolf Gero and Rüsing, Michael}, year={2023} }","mla":"Neufeld, Sergej, et al. “Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family.” Crystals, vol. 13, no. 10, 1423, MDPI AG, 2023, doi:10.3390/cryst13101423.","chicago":"Neufeld, Sergej, Uwe Gerstmann, Laura Padberg, Christof Eigner, Gerhard Berth, Christine Silberhorn, Lukas M. Eng, Wolf Gero Schmidt, and Michael Rüsing. “Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family.” Crystals 13, no. 10 (2023). https://doi.org/10.3390/cryst13101423.","apa":"Neufeld, S., Gerstmann, U., Padberg, L., Eigner, C., Berth, G., Silberhorn, C., Eng, L. M., Schmidt, W. G., & Rüsing, M. (2023). Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family. Crystals, 13(10), Article 1423. https://doi.org/10.3390/cryst13101423","ama":"Neufeld S, Gerstmann U, Padberg L, et al. Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family. Crystals. 2023;13(10). doi:10.3390/cryst13101423"},"main_file_link":[{"url":"https://doi.org/10.3390/cryst13101423","open_access":"1"}],"funded_apc":"1","user_id":"22501","abstract":[{"text":"The crystal family of potassium titanyl phosphate (KTiOPO4) is a promising material group for applications in quantum and nonlinear optics. The fabrication of low-loss optical waveguides, as well as high-grade periodically poled ferroelectric domain structures, requires a profound understanding of the material properties and crystal structure. In this regard, Raman spectroscopy offers the possibility to study and visualize domain structures, strain, defects, and the local stoichiometry, which are all factors impacting device performance. However, the accurate interpretation of Raman spectra and their changes with respect to extrinsic and intrinsic defects requires a thorough assignment of the Raman modes to their respective crystal features, which to date is only partly conducted based on phenomenological modelling. To address this issue, we calculated the phonon spectra of potassium titanyl phosphate and the related compounds rubidium titanyl phosphate (RbTiOPO4) and potassium titanyl arsenate (KTiOAsO4) based on density functional theory and compared them with experimental data. Overall, this allows us to assign various spectral features to eigenmodes of lattice substructures with improved detail compared to previous assignments. Nevertheless, the analysis also shows that not all features of the spectra can unambigiously be explained yet. A possible explanation might be that defects or long range fields not included in the modeling play a crucial rule for the resulting Raman spectrum. In conclusion, this work provides an improved foundation into the vibrational properties in the KTiOPO4 material family.","lang":"eng"}],"status":"public","date_created":"2023-10-11T09:10:53Z","volume":13,"author":[{"last_name":"Neufeld","first_name":"Sergej","full_name":"Neufeld, Sergej"},{"orcid":"0000-0002-4476-223X","full_name":"Gerstmann, Uwe","first_name":"Uwe","id":"171","last_name":"Gerstmann"},{"last_name":"Padberg","id":"40300","first_name":"Laura","full_name":"Padberg, Laura"},{"last_name":"Eigner","id":"13244","first_name":"Christof","full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083"},{"first_name":"Gerhard","full_name":"Berth, Gerhard","last_name":"Berth","id":"53"},{"id":"26263","last_name":"Silberhorn","full_name":"Silberhorn, Christine","first_name":"Christine"},{"last_name":"Eng","full_name":"Eng, Lukas M.","first_name":"Lukas M."},{"full_name":"Schmidt, Wolf Gero","orcid":"0000-0002-2717-5076","first_name":"Wolf Gero","id":"468","last_name":"Schmidt"},{"id":"22501","last_name":"Rüsing","full_name":"Rüsing, Michael","orcid":"0000-0003-4682-4577","first_name":"Michael"}],"quality_controlled":"1","publisher":"MDPI AG","keyword":["Inorganic Chemistry","Condensed Matter Physics","General Materials Science","General Chemical Engineering"],"publication":"Crystals","oa":"1","doi":"10.3390/cryst13101423","date_updated":"2023-10-11T09:15:58Z","language":[{"iso":"eng"}],"title":"Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family","project":[{"name":"TRR 142 - B07: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften von Lithiumniobat (B07*)","grant_number":"231447078","_id":"168"},{"_id":"55","name":"TRR 142 - B: TRR 142 - Project Area B"},{"_id":"266","grant_number":"PROFILNRW-2020-067","name":"PhoQC: PhoQC: Photonisches Quantencomputing"}],"publication_status":"published","publication_identifier":{"issn":["2073-4352"]},"department":[{"_id":"169"}]},{"abstract":[{"lang":"eng","text":"Quantum photonic processing via electro-optic components typically requires electronic links across different operation environments, especially when interfacing cryogenic components such as superconducting single photon detectors with room-temperature control and readout electronics. However, readout and driving electronics can introduce detrimental parasitic effects. Here we show an all-optical control and readout of a superconducting nanowire single photon detector (SNSPD), completely electrically decoupled from room temperature electronics. We provide the operation power for the superconducting detector via a cryogenic photodiode, and readout single photon detection signals via a cryogenic electro-optic modulator in the same cryostat. This method opens the possibility for control and readout of superconducting circuits, and feedforward for photonic quantum computing."}],"user_id":"50819","keyword":["Atomic and Molecular Physics","and Optics"],"publication":"Optics Express","publisher":"Optica Publishing Group","author":[{"full_name":"Thiele, Frederik","orcid":"0000-0003-0663-5587","first_name":"Frederik","id":"50819","last_name":"Thiele"},{"first_name":"Thomas","full_name":"Hummel, Thomas","last_name":"Hummel","id":"83846"},{"last_name":"McCaughan","first_name":"Adam N.","full_name":"McCaughan, Adam N."},{"first_name":"Julian","full_name":"Brockmeier, Julian","last_name":"Brockmeier","id":"44807"},{"id":"46170","last_name":"Protte","full_name":"Protte, Maximilian","first_name":"Maximilian"},{"last_name":"Quiring","full_name":"Quiring, Victor","first_name":"Victor"},{"first_name":"Sebastian","full_name":"Lengeling, Sebastian","last_name":"Lengeling","id":"44373"},{"orcid":"https://orcid.org/0000-0002-5693-3083","full_name":"Eigner, Christof","first_name":"Christof","id":"13244","last_name":"Eigner"},{"full_name":"Silberhorn, Christine","first_name":"Christine","id":"26263","last_name":"Silberhorn"},{"last_name":"Bartley","id":"49683","first_name":"Tim","full_name":"Bartley, Tim"}],"date_created":"2023-10-24T06:43:16Z","status":"public","volume":31,"_id":"48399","intvolume":" 31","issue":"20","article_number":"32717","type":"journal_article","citation":{"short":"F. Thiele, T. Hummel, A.N. McCaughan, J. Brockmeier, M. Protte, V. Quiring, S. Lengeling, C. Eigner, C. Silberhorn, T. Bartley, Optics Express 31 (2023).","ieee":"F. Thiele et al., “All optical operation of a superconducting photonic interface,” Optics Express, vol. 31, no. 20, Art. no. 32717, 2023, doi: 10.1364/oe.492035.","ama":"Thiele F, Hummel T, McCaughan AN, et al. All optical operation of a superconducting photonic interface. Optics Express. 2023;31(20). doi:10.1364/oe.492035","apa":"Thiele, F., Hummel, T., McCaughan, A. N., Brockmeier, J., Protte, M., Quiring, V., Lengeling, S., Eigner, C., Silberhorn, C., & Bartley, T. (2023). All optical operation of a superconducting photonic interface. Optics Express, 31(20), Article 32717. https://doi.org/10.1364/oe.492035","chicago":"Thiele, Frederik, Thomas Hummel, Adam N. McCaughan, Julian Brockmeier, Maximilian Protte, Victor Quiring, Sebastian Lengeling, Christof Eigner, Christine Silberhorn, and Tim Bartley. “All Optical Operation of a Superconducting Photonic Interface.” Optics Express 31, no. 20 (2023). https://doi.org/10.1364/oe.492035.","mla":"Thiele, Frederik, et al. “All Optical Operation of a Superconducting Photonic Interface.” Optics Express, vol. 31, no. 20, 32717, Optica Publishing Group, 2023, doi:10.1364/oe.492035.","bibtex":"@article{Thiele_Hummel_McCaughan_Brockmeier_Protte_Quiring_Lengeling_Eigner_Silberhorn_Bartley_2023, title={All optical operation of a superconducting photonic interface}, volume={31}, DOI={10.1364/oe.492035}, number={2032717}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Thiele, Frederik and Hummel, Thomas and McCaughan, Adam N. and Brockmeier, Julian and Protte, Maximilian and Quiring, Victor and Lengeling, Sebastian and Eigner, Christof and Silberhorn, Christine and Bartley, Tim}, year={2023} }"},"year":"2023","title":"All optical operation of a superconducting photonic interface","publication_identifier":{"issn":["1094-4087"]},"publication_status":"published","date_updated":"2023-11-27T08:43:33Z","doi":"10.1364/oe.492035","language":[{"iso":"eng"}]},{"department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"publication_identifier":{"issn":["1094-4087"]},"publication_status":"published","project":[{"name":"TRR 142 - C5: TRR 142 - Subproject C5","_id":"75"},{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"title":"Broadband optical Ta2O5 antennas for directional emission of light","language":[{"iso":"eng"}],"date_updated":"2022-05-18T20:01:46Z","doi":"10.1364/oe.455815","publication":"Optics Express","keyword":["tet_topic_opticalantenna"],"author":[{"full_name":"Farheen, Henna","first_name":"Henna","last_name":"Farheen"},{"first_name":"Lok-Yee","full_name":"Yan, Lok-Yee","last_name":"Yan"},{"full_name":"Quiring, Viktor","first_name":"Viktor","last_name":"Quiring"},{"last_name":"Eigner","id":"13244","first_name":"Christof","full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083"},{"full_name":"Zentgraf, Thomas","orcid":"0000-0002-8662-1101","first_name":"Thomas","id":"30525","last_name":"Zentgraf"},{"first_name":"Stefan","full_name":"Linden, Stefan","last_name":"Linden"},{"first_name":"Jens","orcid":"0000-0001-7059-9862","full_name":"Förstner, Jens","last_name":"Förstner","id":"158"},{"first_name":"Viktor","full_name":"Myroshnychenko, Viktor","last_name":"Myroshnychenko","id":"46371"}],"publisher":"Optica Publishing Group","volume":30,"date_created":"2022-05-18T16:39:17Z","status":"public","abstract":[{"text":"Highly directive antennas with the ability of shaping radiation patterns in desired directions are essential for efficient on-chip optical communication with reduced cross talk. In this paper, we design and optimize three distinct broadband traveling-wave tantalum pentoxide antennas exhibiting highly directional characteristics. Our antennas contain a director and reflector deposited on a glass substrate, which are excited by a dipole emitter placed in the feed gap between the two elements. Full-wave simulations in conjunction with global optimization provide structures with an enhanced linear directivity as high as 119 radiating in the substrate. The high directivity is a result of the interplay between two dominant TE modes and the leaky modes present in the antenna director. Furthermore, these low-loss dielectric antennas exhibit a near-unity radiation efficiency at the operational wavelength of 780 nm and maintain a broad bandwidth. Our numerical results are in good agreement with experimental measurements from the optimized antennas fabricated using a two-step electron-beam lithography, revealing the highly directive nature of our structures. We envision that our antenna designs can be conveniently adapted to other dielectric materials and prove instrumental for inter-chip optical communications and other on-chip applications.","lang":"eng"}],"user_id":"158","page":"19288","year":"2022","citation":{"bibtex":"@article{Farheen_Yan_Quiring_Eigner_Zentgraf_Linden_Förstner_Myroshnychenko_2022, title={Broadband optical Ta2O5 antennas for directional emission of light}, volume={30}, DOI={10.1364/oe.455815}, number={11}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Farheen, Henna and Yan, Lok-Yee and Quiring, Viktor and Eigner, Christof and Zentgraf, Thomas and Linden, Stefan and Förstner, Jens and Myroshnychenko, Viktor}, year={2022}, pages={19288} }","mla":"Farheen, Henna, et al. “Broadband Optical Ta2O5 Antennas for Directional Emission of Light.” Optics Express, vol. 30, no. 11, Optica Publishing Group, 2022, p. 19288, doi:10.1364/oe.455815.","apa":"Farheen, H., Yan, L.-Y., Quiring, V., Eigner, C., Zentgraf, T., Linden, S., Förstner, J., & Myroshnychenko, V. (2022). Broadband optical Ta2O5 antennas for directional emission of light. Optics Express, 30(11), 19288. https://doi.org/10.1364/oe.455815","ama":"Farheen H, Yan L-Y, Quiring V, et al. Broadband optical Ta2O5 antennas for directional emission of light. Optics Express. 2022;30(11):19288. doi:10.1364/oe.455815","chicago":"Farheen, Henna, Lok-Yee Yan, Viktor Quiring, Christof Eigner, Thomas Zentgraf, Stefan Linden, Jens Förstner, and Viktor Myroshnychenko. “Broadband Optical Ta2O5 Antennas for Directional Emission of Light.” Optics Express 30, no. 11 (2022): 19288. https://doi.org/10.1364/oe.455815.","ieee":"H. Farheen et al., “Broadband optical Ta2O5 antennas for directional emission of light,” Optics Express, vol. 30, no. 11, p. 19288, 2022, doi: 10.1364/oe.455815.","short":"H. Farheen, L.-Y. Yan, V. Quiring, C. Eigner, T. Zentgraf, S. Linden, J. Förstner, V. Myroshnychenko, Optics Express 30 (2022) 19288."},"type":"journal_article","intvolume":" 30","_id":"31329","issue":"11"},{"article_number":"108","issue":"1","intvolume":" 9","_id":"30342","year":"2022","citation":{"ieee":"N. A. Lange et al., “Cryogenic integrated spontaneous parametric down-conversion,” Optica, vol. 9, no. 1, Art. no. 108, 2022, doi: 10.1364/optica.445576.","short":"N.A. Lange, J.P. Höpker, R. Ricken, V. Quiring, C. Eigner, C. Silberhorn, T. Bartley, Optica 9 (2022).","bibtex":"@article{Lange_Höpker_Ricken_Quiring_Eigner_Silberhorn_Bartley_2022, title={Cryogenic integrated spontaneous parametric down-conversion}, volume={9}, DOI={10.1364/optica.445576}, number={1108}, journal={Optica}, publisher={The Optical Society}, author={Lange, Nina Amelie and Höpker, Jan Philipp and Ricken, Raimund and Quiring, Viktor and Eigner, Christof and Silberhorn, Christine and Bartley, Tim}, year={2022} }","mla":"Lange, Nina Amelie, et al. “Cryogenic Integrated Spontaneous Parametric Down-Conversion.” Optica, vol. 9, no. 1, 108, The Optical Society, 2022, doi:10.1364/optica.445576.","apa":"Lange, N. A., Höpker, J. P., Ricken, R., Quiring, V., Eigner, C., Silberhorn, C., & Bartley, T. (2022). Cryogenic integrated spontaneous parametric down-conversion. Optica, 9(1), Article 108. https://doi.org/10.1364/optica.445576","ama":"Lange NA, Höpker JP, Ricken R, et al. Cryogenic integrated spontaneous parametric down-conversion. Optica. 2022;9(1). doi:10.1364/optica.445576","chicago":"Lange, Nina Amelie, Jan Philipp Höpker, Raimund Ricken, Viktor Quiring, Christof Eigner, Christine Silberhorn, and Tim Bartley. “Cryogenic Integrated Spontaneous Parametric Down-Conversion.” Optica 9, no. 1 (2022). https://doi.org/10.1364/optica.445576."},"type":"journal_article","user_id":"33913","volume":9,"date_created":"2022-03-16T08:53:22Z","status":"public","publication":"Optica","keyword":["Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"],"publisher":"The Optical Society","author":[{"full_name":"Lange, Nina Amelie","first_name":"Nina Amelie","id":"56843","last_name":"Lange"},{"last_name":"Höpker","id":"33913","first_name":"Jan Philipp","full_name":"Höpker, Jan Philipp"},{"first_name":"Raimund","full_name":"Ricken, Raimund","last_name":"Ricken"},{"last_name":"Quiring","full_name":"Quiring, Viktor","first_name":"Viktor"},{"full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083","first_name":"Christof","id":"13244","last_name":"Eigner"},{"first_name":"Christine","full_name":"Silberhorn, Christine","last_name":"Silberhorn","id":"26263"},{"last_name":"Bartley","id":"49683","first_name":"Tim","full_name":"Bartley, Tim"}],"doi":"10.1364/optica.445576","date_updated":"2023-01-12T13:42:23Z","language":[{"iso":"eng"}],"title":"Cryogenic integrated spontaneous parametric down-conversion","publication_identifier":{"issn":["2334-2536"]},"publication_status":"published","department":[{"_id":"15"},{"_id":"230"},{"_id":"623"}]},{"type":"journal_article","citation":{"chicago":"Thiele, Frederik, Felix vom Bruch, Julian Brockmeier, Maximilian Protte, Thomas Hummel, Raimund Ricken, Viktor Quiring, et al. “Cryogenic Electro-Optic Modulation in Titanium in-Diffused Lithium Niobate Waveguides.” Journal of Physics: Photonics 4, no. 3 (2022). https://doi.org/10.1088/2515-7647/ac6c63.","ama":"Thiele F, vom Bruch F, Brockmeier J, et al. Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides. Journal of Physics: Photonics. 2022;4(3). doi:10.1088/2515-7647/ac6c63","apa":"Thiele, F., vom Bruch, F., Brockmeier, J., Protte, M., Hummel, T., Ricken, R., Quiring, V., Lengeling, S., Herrmann, H., Eigner, C., Silberhorn, C., & Bartley, T. (2022). Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides. Journal of Physics: Photonics, 4(3), Article 034004. https://doi.org/10.1088/2515-7647/ac6c63","mla":"Thiele, Frederik, et al. “Cryogenic Electro-Optic Modulation in Titanium in-Diffused Lithium Niobate Waveguides.” Journal of Physics: Photonics, vol. 4, no. 3, 034004, IOP Publishing, 2022, doi:10.1088/2515-7647/ac6c63.","bibtex":"@article{Thiele_vom Bruch_Brockmeier_Protte_Hummel_Ricken_Quiring_Lengeling_Herrmann_Eigner_et al._2022, title={Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides}, volume={4}, DOI={10.1088/2515-7647/ac6c63}, number={3034004}, journal={Journal of Physics: Photonics}, publisher={IOP Publishing}, author={Thiele, Frederik and vom Bruch, Felix and Brockmeier, Julian and Protte, Maximilian and Hummel, Thomas and Ricken, Raimund and Quiring, Viktor and Lengeling, Sebastian and Herrmann, Harald and Eigner, Christof and et al.}, year={2022} }","short":"F. Thiele, F. vom Bruch, J. Brockmeier, M. Protte, T. Hummel, R. Ricken, V. Quiring, S. Lengeling, H. Herrmann, C. Eigner, C. Silberhorn, T. Bartley, Journal of Physics: Photonics 4 (2022).","ieee":"F. Thiele et al., “Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides,” Journal of Physics: Photonics, vol. 4, no. 3, Art. no. 034004, 2022, doi: 10.1088/2515-7647/ac6c63."},"year":"2022","_id":"33672","intvolume":" 4","article_number":"034004","issue":"3","keyword":["Electrical and Electronic Engineering","Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"],"publication":"Journal of Physics: Photonics","author":[{"last_name":"Thiele","id":"50819","first_name":"Frederik","orcid":"0000-0003-0663-5587","full_name":"Thiele, Frederik"},{"full_name":"vom Bruch, Felix","first_name":"Felix","id":"71245","last_name":"vom Bruch"},{"id":"44807","last_name":"Brockmeier","full_name":"Brockmeier, Julian","first_name":"Julian"},{"full_name":"Protte, Maximilian","first_name":"Maximilian","id":"46170","last_name":"Protte"},{"full_name":"Hummel, Thomas","first_name":"Thomas","id":"83846","last_name":"Hummel"},{"last_name":"Ricken","first_name":"Raimund","full_name":"Ricken, Raimund"},{"full_name":"Quiring, Viktor","first_name":"Viktor","last_name":"Quiring"},{"id":"44373","last_name":"Lengeling","full_name":"Lengeling, Sebastian","first_name":"Sebastian"},{"last_name":"Herrmann","id":"216","first_name":"Harald","full_name":"Herrmann, Harald"},{"last_name":"Eigner","id":"13244","first_name":"Christof","full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083"},{"id":"26263","last_name":"Silberhorn","full_name":"Silberhorn, Christine","first_name":"Christine"},{"last_name":"Bartley","id":"49683","first_name":"Tim","full_name":"Bartley, Tim"}],"publisher":"IOP Publishing","volume":4,"date_created":"2022-10-11T07:14:40Z","status":"public","abstract":[{"text":"Abstract\r\n Lithium niobate is a promising platform for integrated quantum optics. In this platform, we aim to efficiently manipulate and detect quantum states by combining superconducting single photon detectors and modulators. The cryogenic operation of a superconducting single photon detector dictates the optimisation of the electro-optic modulators under the same operating conditions. To that end, we characterise a phase modulator, directional coupler, and polarisation converter at both ambient and cryogenic temperatures. The operation voltage \r\n \r\n \r\n \r\n V\r\n \r\n π\r\n \r\n /\r\n \r\n 2\r\n \r\n \r\n \r\n \r\n of these modulators increases, due to the decrease in the electro-optic effect, by 74% for the phase modulator, 84% for the directional coupler and 35% for the polarisation converter below 8.5\r\n \r\n \r\n \r\n K\r\n \r\n \r\n \r\n . The phase modulator preserves its broadband nature and modulates light in the characterised wavelength range. The unbiased bar state of the directional coupler changed by a wavelength shift of 85\r\n \r\n \r\n \r\n n\r\n m\r\n \r\n \r\n \r\n while cooling the device down to 5\r\n \r\n \r\n \r\n K\r\n \r\n \r\n \r\n . The polarisation converter uses periodic poling to phasematch the two orthogonal polarisations. The phasematched wavelength of the utilised poling changes by 112\r\n \r\n \r\n \r\n n\r\n m\r\n \r\n \r\n \r\n when cooling to 5\r\n \r\n \r\n \r\n K\r\n \r\n \r\n \r\n .","lang":"eng"}],"user_id":"83846","language":[{"iso":"eng"}],"date_updated":"2023-01-12T15:16:35Z","doi":"10.1088/2515-7647/ac6c63","department":[{"_id":"15"},{"_id":"230"},{"_id":"623"}],"publication_identifier":{"issn":["2515-7647"]},"publication_status":"published","title":"Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides"},{"language":[{"iso":"eng"}],"date_updated":"2023-01-31T07:51:51Z","doi":"10.1103/physrevlett.129.150501","department":[{"_id":"623"}],"publication_status":"published","publication_identifier":{"issn":["0031-9007","1079-7114"]},"title":"Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing","citation":{"ieee":"E. Meyer-Scott et al., “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing,” Physical Review Letters, vol. 129, no. 15, Art. no. 150501, 2022, doi: 10.1103/physrevlett.129.150501.","short":"E. Meyer-Scott, N. Prasannan, I. Dhand, C. Eigner, V. Quiring, S. Barkhofen, B. Brecht, M.B. Plenio, C. Silberhorn, Physical Review Letters 129 (2022).","bibtex":"@article{Meyer-Scott_Prasannan_Dhand_Eigner_Quiring_Barkhofen_Brecht_Plenio_Silberhorn_2022, title={Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing}, volume={129}, DOI={10.1103/physrevlett.129.150501}, number={15150501}, journal={Physical Review Letters}, publisher={American Physical Society (APS)}, author={Meyer-Scott, Evan and Prasannan, Nidhin and Dhand, Ish and Eigner, Christof and Quiring, Viktor and Barkhofen, Sonja and Brecht, Benjamin and Plenio, Martin B. and Silberhorn, Christine}, year={2022} }","mla":"Meyer-Scott, Evan, et al. “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing.” Physical Review Letters, vol. 129, no. 15, 150501, American Physical Society (APS), 2022, doi:10.1103/physrevlett.129.150501.","ama":"Meyer-Scott E, Prasannan N, Dhand I, et al. Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing. Physical Review Letters. 2022;129(15). doi:10.1103/physrevlett.129.150501","apa":"Meyer-Scott, E., Prasannan, N., Dhand, I., Eigner, C., Quiring, V., Barkhofen, S., Brecht, B., Plenio, M. B., & Silberhorn, C. (2022). Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing. Physical Review Letters, 129(15), Article 150501. https://doi.org/10.1103/physrevlett.129.150501","chicago":"Meyer-Scott, Evan, Nidhin Prasannan, Ish Dhand, Christof Eigner, Viktor Quiring, Sonja Barkhofen, Benjamin Brecht, Martin B. Plenio, and Christine Silberhorn. “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing.” Physical Review Letters 129, no. 15 (2022). https://doi.org/10.1103/physrevlett.129.150501."},"type":"journal_article","year":"2022","_id":"39025","intvolume":" 129","issue":"15","article_number":"150501","keyword":["General Physics and Astronomy"],"publication":"Physical Review Letters","author":[{"last_name":"Meyer-Scott","first_name":"Evan","full_name":"Meyer-Scott, Evan"},{"first_name":"Nidhin","full_name":"Prasannan, Nidhin","last_name":"Prasannan","id":"71403"},{"last_name":"Dhand","full_name":"Dhand, Ish","first_name":"Ish"},{"orcid":"https://orcid.org/0000-0002-5693-3083","full_name":"Eigner, Christof","first_name":"Christof","id":"13244","last_name":"Eigner"},{"last_name":"Quiring","full_name":"Quiring, Viktor","first_name":"Viktor"},{"last_name":"Barkhofen","id":"48188","first_name":"Sonja","full_name":"Barkhofen, Sonja"},{"id":"27150","last_name":"Brecht","full_name":"Brecht, Benjamin","orcid":"0000-0003-4140-0556 ","first_name":"Benjamin"},{"first_name":"Martin B.","full_name":"Plenio, Martin B.","last_name":"Plenio"},{"full_name":"Silberhorn, Christine","first_name":"Christine","id":"26263","last_name":"Silberhorn"}],"publisher":"American Physical Society (APS)","date_created":"2023-01-24T08:05:44Z","status":"public","volume":129,"user_id":"26263"},{"user_id":"48188","status":"public","date_created":"2023-01-26T10:21:24Z","volume":129,"publisher":"American Physical Society (APS)","author":[{"last_name":"Meyer-Scott","first_name":"Evan","full_name":"Meyer-Scott, Evan"},{"last_name":"Prasannan","id":"71403","first_name":"Nidhin","full_name":"Prasannan, Nidhin"},{"first_name":"Ish","full_name":"Dhand, Ish","last_name":"Dhand"},{"full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083","first_name":"Christof","id":"13244","last_name":"Eigner"},{"last_name":"Quiring","full_name":"Quiring, Viktor","first_name":"Viktor"},{"full_name":"Barkhofen, Sonja","first_name":"Sonja","id":"48188","last_name":"Barkhofen"},{"last_name":"Brecht","id":"27150","first_name":"Benjamin","orcid":"0000-0003-4140-0556 ","full_name":"Brecht, Benjamin"},{"last_name":"Plenio","full_name":"Plenio, Martin B.","first_name":"Martin B."},{"full_name":"Silberhorn, Christine","first_name":"Christine","id":"26263","last_name":"Silberhorn"}],"keyword":["General Physics and Astronomy"],"publication":"Physical Review Letters","issue":"15","article_number":"150501","intvolume":" 129","_id":"40273","type":"journal_article","citation":{"mla":"Meyer-Scott, Evan, et al. “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing.” Physical Review Letters, vol. 129, no. 15, 150501, American Physical Society (APS), 2022, doi:10.1103/physrevlett.129.150501.","bibtex":"@article{Meyer-Scott_Prasannan_Dhand_Eigner_Quiring_Barkhofen_Brecht_Plenio_Silberhorn_2022, title={Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing}, volume={129}, DOI={10.1103/physrevlett.129.150501}, number={15150501}, journal={Physical Review Letters}, publisher={American Physical Society (APS)}, author={Meyer-Scott, Evan and Prasannan, Nidhin and Dhand, Ish and Eigner, Christof and Quiring, Viktor and Barkhofen, Sonja and Brecht, Benjamin and Plenio, Martin B. and Silberhorn, Christine}, year={2022} }","ama":"Meyer-Scott E, Prasannan N, Dhand I, et al. Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing. Physical Review Letters. 2022;129(15). doi:10.1103/physrevlett.129.150501","apa":"Meyer-Scott, E., Prasannan, N., Dhand, I., Eigner, C., Quiring, V., Barkhofen, S., Brecht, B., Plenio, M. B., & Silberhorn, C. (2022). Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing. Physical Review Letters, 129(15), Article 150501. https://doi.org/10.1103/physrevlett.129.150501","chicago":"Meyer-Scott, Evan, Nidhin Prasannan, Ish Dhand, Christof Eigner, Viktor Quiring, Sonja Barkhofen, Benjamin Brecht, Martin B. Plenio, and Christine Silberhorn. “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing.” Physical Review Letters 129, no. 15 (2022). https://doi.org/10.1103/physrevlett.129.150501.","ieee":"E. Meyer-Scott et al., “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing,” Physical Review Letters, vol. 129, no. 15, Art. no. 150501, 2022, doi: 10.1103/physrevlett.129.150501.","short":"E. Meyer-Scott, N. Prasannan, I. Dhand, C. Eigner, V. Quiring, S. Barkhofen, B. Brecht, M.B. Plenio, C. Silberhorn, Physical Review Letters 129 (2022)."},"year":"2022","title":"Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing","publication_identifier":{"issn":["0031-9007","1079-7114"]},"publication_status":"published","department":[{"_id":"288"},{"_id":"15"},{"_id":"623"},{"_id":"230"}],"doi":"10.1103/physrevlett.129.150501","date_updated":"2023-02-02T08:53:55Z","language":[{"iso":"eng"}]},{"_id":"43744","conference":{"end_date":"2022-05-20","location":"San Jose, California United States","start_date":"2022-05-15","name":"CLEO: Applications and Technology 2022"},"main_file_link":[{"url":"https://opg.optica.org/abstract.cfm?uri=CLEO_AT-2022-JTu3A.17"}],"citation":{"ieee":"T. Meier et al., “Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity,” in Conference on Lasers and Electro-Optics: Applications and Technology, San Jose, California United States, 2022, p. JTu3A. 17, doi: 10.1364/CLEO_AT.2022.JTu3A.17.","short":"T. Meier, J.P. Hoepker, M. Protte, C. Eigner, C. Silberhorn, P.R. Sharapova, J. Sperling, T. Bartley, in: Conference on Lasers and Electro-Optics: Applications and Technology, Optica Publishing Group, 2022, p. JTu3A. 17.","mla":"Meier, Torsten, et al. “Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity.” Conference on Lasers and Electro-Optics: Applications and Technology, Optica Publishing Group, 2022, p. JTu3A. 17, doi:10.1364/CLEO_AT.2022.JTu3A.17.","bibtex":"@inproceedings{Meier_Hoepker_Protte_Eigner_Silberhorn_Sharapova_Sperling_Bartley_2022, title={Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity}, DOI={10.1364/CLEO_AT.2022.JTu3A.17}, booktitle={Conference on Lasers and Electro-Optics: Applications and Technology}, publisher={Optica Publishing Group}, author={Meier, Torsten and Hoepker, Jan Philipp and Protte, Maximilian and Eigner, Christof and Silberhorn, Christine and Sharapova, Polina R. and Sperling, Jan and Bartley, Tim}, year={2022}, pages={JTu3A. 17} }","ama":"Meier T, Hoepker JP, Protte M, et al. Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity. In: Conference on Lasers and Electro-Optics: Applications and Technology. Optica Publishing Group; 2022:JTu3A. 17. doi:10.1364/CLEO_AT.2022.JTu3A.17","apa":"Meier, T., Hoepker, J. P., Protte, M., Eigner, C., Silberhorn, C., Sharapova, P. R., Sperling, J., & Bartley, T. (2022). Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity. Conference on Lasers and Electro-Optics: Applications and Technology, JTu3A. 17. https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17","chicago":"Meier, Torsten, Jan Philipp Hoepker, Maximilian Protte, Christof Eigner, Christine Silberhorn, Polina R. Sharapova, Jan Sperling, and Tim Bartley. “Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity.” In Conference on Lasers and Electro-Optics: Applications and Technology, JTu3A. 17. Optica Publishing Group, 2022. https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17."},"type":"conference","year":"2022","page":"JTu3A. 17","abstract":[{"lang":"eng","text":"We demonstrate theoretically and experimentally complex correlations in the photon numbers of two-mode quantum states using measurement-induced nonlinearity. For this, we combine the interference of coherent states and single photons with photon sub-traction."}],"user_id":"16199","publisher":"Optica Publishing Group","author":[{"full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","first_name":"Torsten","id":"344","last_name":"Meier"},{"first_name":"Jan Philipp","full_name":"Hoepker, Jan Philipp","last_name":"Hoepker"},{"first_name":"Maximilian","full_name":"Protte, Maximilian","last_name":"Protte","id":"46170"},{"last_name":"Eigner","id":"13244","first_name":"Christof","full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083"},{"first_name":"Christine","full_name":"Silberhorn, Christine","last_name":"Silberhorn","id":"26263"},{"id":"60286","last_name":"Sharapova","full_name":"Sharapova, Polina R.","first_name":"Polina R."},{"last_name":"Sperling","id":"75127","first_name":"Jan","orcid":"0000-0002-5844-3205","full_name":"Sperling, Jan"},{"first_name":"Tim","full_name":"Bartley, Tim","last_name":"Bartley","id":"49683"}],"publication":"Conference on Lasers and Electro-Optics: Applications and Technology","status":"public","date_created":"2023-04-16T01:31:32Z","date_updated":"2023-04-21T11:10:06Z","doi":"10.1364/CLEO_AT.2022.JTu3A.17","language":[{"iso":"eng"}],"title":"Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity","department":[{"_id":"293"},{"_id":"35"},{"_id":"15"},{"_id":"170"},{"_id":"230"},{"_id":"35"},{"_id":"482"},{"_id":"706"},{"_id":"288"}],"publication_status":"published","publication_identifier":{"isbn":["978-1-957171-05-0"]}},{"page":"1359","citation":{"bibtex":"@article{Padberg_Quiring_Bocchini_Santandrea_Gerstmann_Schmidt_Silberhorn_Eigner_2022, title={DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray Tracking}, volume={12}, DOI={10.3390/cryst12101359}, journal={Crystals}, author={Padberg, Laura and Quiring, Viktor and Bocchini, Adriana and Santandrea, Matteo and Gerstmann, Uwe and Schmidt, Wolf Gero and Silberhorn, Christine and Eigner, Christof}, year={2022}, pages={1359} }","mla":"Padberg, Laura, et al. “DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray Tracking.” Crystals, vol. 12, 2022, p. 1359, doi:10.3390/cryst12101359.","chicago":"Padberg, Laura, Viktor Quiring, Adriana Bocchini, Matteo Santandrea, Uwe Gerstmann, Wolf Gero Schmidt, Christine Silberhorn, and Christof Eigner. “DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray Tracking.” Crystals 12 (2022): 1359. https://doi.org/10.3390/cryst12101359.","ama":"Padberg L, Quiring V, Bocchini A, et al. DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray Tracking. Crystals. 2022;12:1359. doi:10.3390/cryst12101359","apa":"Padberg, L., Quiring, V., Bocchini, A., Santandrea, M., Gerstmann, U., Schmidt, W. G., Silberhorn, C., & Eigner, C. (2022). DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray Tracking. Crystals, 12, 1359. https://doi.org/10.3390/cryst12101359","ieee":"L. Padberg et al., “DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray Tracking,” Crystals, vol. 12, p. 1359, 2022, doi: 10.3390/cryst12101359.","short":"L. Padberg, V. Quiring, A. Bocchini, M. Santandrea, U. Gerstmann, W.G. Schmidt, C. Silberhorn, C. Eigner, Crystals 12 (2022) 1359."},"year":"2022","type":"journal_article","main_file_link":[{"open_access":"1"}],"_id":"33484","intvolume":" 12","date_created":"2022-09-26T13:12:48Z","status":"public","volume":12,"publication":"Crystals","author":[{"id":"40300","last_name":"Padberg","full_name":"Padberg, Laura","first_name":"Laura"},{"last_name":"Quiring","full_name":"Quiring, Viktor","first_name":"Viktor"},{"first_name":"Adriana","orcid":"0000-0002-2134-3075","full_name":"Bocchini, Adriana","last_name":"Bocchini","id":"58349"},{"last_name":"Santandrea","id":"55095","first_name":"Matteo","orcid":"0000-0001-5718-358X","full_name":"Santandrea, Matteo"},{"orcid":"0000-0002-4476-223X","full_name":"Gerstmann, Uwe","first_name":"Uwe","id":"171","last_name":"Gerstmann"},{"orcid":"0000-0002-2717-5076","full_name":"Schmidt, Wolf Gero","first_name":"Wolf Gero","id":"468","last_name":"Schmidt"},{"id":"26263","last_name":"Silberhorn","full_name":"Silberhorn, Christine","first_name":"Christine"},{"full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083","first_name":"Christof","id":"13244","last_name":"Eigner"}],"user_id":"171","abstract":[{"text":"We study the DC conductivity in potassium titanyl phosphate (KTiOPO4, KTP) and its isomorphs KTiOAsO4 (KTA) and Rb1%K99%TiOPO4 (RKTP) and introduce a method by which to reduce the overall ionic conductivity in KTP by a potassium nitrate treatment. Furthermore, we create so-called gray tracking in KTP and investigate the ionic conductivity in theses areas. A local unintended reduction of the ionic conductivity is observed in the gray-tracked regions, which also induce additional optical absorption in the material. We show that a thermal treatment in an oxygen-rich atmosphere removes the gray tracking and brings the ionic conductivity as well as the optical transmission back to the original level. These studies can help to choose the best material and treatment for specific applications.","lang":"eng"}],"language":[{"iso":"eng"}],"oa":"1","doi":"10.3390/cryst12101359","date_updated":"2023-04-21T11:07:11Z","project":[{"name":"TRR 142: TRR 142","_id":"53"},{"name":"TRR 142 - B: TRR 142 - Project Area B","_id":"55"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"name":"TRR 142 - B07: TRR 142 - Subproject B07","_id":"168"},{"name":"TRR 142 - A: TRR 142 - Project Area A","_id":"54"},{"name":"TRR 142 - A11: TRR 142 - Subproject A11","_id":"166"}],"publication_identifier":{"issn":["2073-4352"]},"department":[{"_id":"15"},{"_id":"288"},{"_id":"623"},{"_id":"170"},{"_id":"295"},{"_id":"230"},{"_id":"429"},{"_id":"35"},{"_id":"790"}],"title":"DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray Tracking"},{"title":"Integrated superconducting nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides","department":[{"_id":"15"},{"_id":"61"},{"_id":"230"}],"publication_status":"published","publication_identifier":{"issn":["2515-7647"]},"project":[{"name":"TRR 142","_id":"53"}],"date_updated":"2022-10-25T07:34:42Z","doi":"10.1088/2515-7647/ac105b","oa":"1","language":[{"iso":"eng"}],"article_type":"original","abstract":[{"text":"We demonstrate the integration of amorphous tungsten silicide superconducting nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides. We show proof-of-principle detection of evanescently coupled photons of 1550 nm wavelength using bidirectional waveguide coupling for two orthogonal polarization directions. We investigate the internal detection efficiency as well as detector absorption using coupling-independent characterization measurements. Furthermore, we describe strategies to improve the yield and efficiency of these devices.","lang":"eng"}],"ddc":["530"],"user_id":"49683","author":[{"id":"33913","last_name":"Höpker","full_name":"Höpker, Jan Philipp","first_name":"Jan Philipp"},{"last_name":"Verma","first_name":"Varun B","full_name":"Verma, Varun B"},{"full_name":"Protte, Maximilian","first_name":"Maximilian","id":"46170","last_name":"Protte"},{"full_name":"Ricken, Raimund","first_name":"Raimund","last_name":"Ricken"},{"full_name":"Quiring, Viktor","first_name":"Viktor","last_name":"Quiring"},{"first_name":"Christof","orcid":"https://orcid.org/0000-0002-5693-3083","full_name":"Eigner, Christof","last_name":"Eigner","id":"13244"},{"last_name":"Ebers","id":"40428","first_name":"Lena","full_name":"Ebers, Lena"},{"first_name":"Manfred","orcid":"0000-0002-6331-9348","full_name":"Hammer, Manfred","last_name":"Hammer","id":"48077"},{"last_name":"Förstner","id":"158","first_name":"Jens","orcid":"0000-0001-7059-9862","full_name":"Förstner, Jens"},{"full_name":"Silberhorn, Christine","first_name":"Christine","id":"26263","last_name":"Silberhorn"},{"last_name":"Mirin","full_name":"Mirin, Richard P","first_name":"Richard P"},{"full_name":"Woo Nam, Sae","first_name":"Sae","last_name":"Woo Nam"},{"full_name":"Bartley, Tim","first_name":"Tim","id":"49683","last_name":"Bartley"}],"publication":"Journal of Physics: Photonics","file_date_updated":"2021-09-07T07:41:04Z","file":[{"date_created":"2021-09-07T07:41:04Z","file_name":"2021-07 Höpker J._Phys._Photonics_3_034022.pdf","access_level":"open_access","file_id":"23825","creator":"fossie","file_size":1097820,"relation":"main_file","date_updated":"2021-09-07T07:41:04Z","content_type":"application/pdf"}],"volume":3,"has_accepted_license":"1","status":"public","date_created":"2021-09-03T08:04:06Z","intvolume":" 3","_id":"23728","type":"journal_article","citation":{"chicago":"Höpker, Jan Philipp, Varun B Verma, Maximilian Protte, Raimund Ricken, Viktor Quiring, Christof Eigner, Lena Ebers, et al. “Integrated Superconducting Nanowire Single-Photon Detectors on Titanium in-Diffused Lithium Niobate Waveguides.” Journal of Physics: Photonics 3 (2021): 034022. https://doi.org/10.1088/2515-7647/ac105b.","apa":"Höpker, J. P., Verma, V. B., Protte, M., Ricken, R., Quiring, V., Eigner, C., Ebers, L., Hammer, M., Förstner, J., Silberhorn, C., Mirin, R. P., Woo Nam, S., & Bartley, T. (2021). Integrated superconducting nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides. Journal of Physics: Photonics, 3, 034022. https://doi.org/10.1088/2515-7647/ac105b","ama":"Höpker JP, Verma VB, Protte M, et al. Integrated superconducting nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides. Journal of Physics: Photonics. 2021;3:034022. doi:10.1088/2515-7647/ac105b","bibtex":"@article{Höpker_Verma_Protte_Ricken_Quiring_Eigner_Ebers_Hammer_Förstner_Silberhorn_et al._2021, title={Integrated superconducting nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides}, volume={3}, DOI={10.1088/2515-7647/ac105b}, journal={Journal of Physics: Photonics}, author={Höpker, Jan Philipp and Verma, Varun B and Protte, Maximilian and Ricken, Raimund and Quiring, Viktor and Eigner, Christof and Ebers, Lena and Hammer, Manfred and Förstner, Jens and Silberhorn, Christine and et al.}, year={2021}, pages={034022} }","mla":"Höpker, Jan Philipp, et al. “Integrated Superconducting Nanowire Single-Photon Detectors on Titanium in-Diffused Lithium Niobate Waveguides.” Journal of Physics: Photonics, vol. 3, 2021, p. 034022, doi:10.1088/2515-7647/ac105b.","short":"J.P. Höpker, V.B. Verma, M. Protte, R. Ricken, V. Quiring, C. Eigner, L. Ebers, M. Hammer, J. Förstner, C. Silberhorn, R.P. Mirin, S. Woo Nam, T. Bartley, Journal of Physics: Photonics 3 (2021) 034022.","ieee":"J. P. Höpker et al., “Integrated superconducting nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides,” Journal of Physics: Photonics, vol. 3, p. 034022, 2021, doi: 10.1088/2515-7647/ac105b."},"year":"2021","page":"034022"},{"language":[{"iso":"eng"}],"year":"2021","citation":{"bibtex":"@article{Bartnick_Santandrea_Höpker_Thiele_Ricken_Quiring_Eigner_Herrmann_Silberhorn_Bartley_2021, title={Cryogenic Second-Harmonic Generation in Periodically Poled Lithium Niobate Waveguides}, DOI={10.1103/physrevapplied.15.024028}, journal={Physical Review Applied}, author={Bartnick, Moritz and Santandrea, Matteo and Höpker, Jan Philipp and Thiele, Frederik and Ricken, Raimund and Quiring, Viktor and Eigner, Christof and Herrmann, Harald and Silberhorn, Christine and Bartley, Tim}, year={2021} }","mla":"Bartnick, Moritz, et al. “Cryogenic Second-Harmonic Generation in Periodically Poled Lithium Niobate Waveguides.” Physical Review Applied, 2021, doi:10.1103/physrevapplied.15.024028.","chicago":"Bartnick, Moritz, Matteo Santandrea, Jan Philipp Höpker, Frederik Thiele, Raimund Ricken, Viktor Quiring, Christof Eigner, Harald Herrmann, Christine Silberhorn, and Tim Bartley. “Cryogenic Second-Harmonic Generation in Periodically Poled Lithium Niobate Waveguides.” Physical Review Applied, 2021. https://doi.org/10.1103/physrevapplied.15.024028.","ama":"Bartnick M, Santandrea M, Höpker JP, et al. Cryogenic Second-Harmonic Generation in Periodically Poled Lithium Niobate Waveguides. Physical Review Applied. Published online 2021. doi:10.1103/physrevapplied.15.024028","apa":"Bartnick, M., Santandrea, M., Höpker, J. P., Thiele, F., Ricken, R., Quiring, V., Eigner, C., Herrmann, H., Silberhorn, C., & Bartley, T. (2021). Cryogenic Second-Harmonic Generation in Periodically Poled Lithium Niobate Waveguides. Physical Review Applied. https://doi.org/10.1103/physrevapplied.15.024028","ieee":"M. Bartnick et al., “Cryogenic Second-Harmonic Generation in Periodically Poled Lithium Niobate Waveguides,” Physical Review Applied, 2021, doi: 10.1103/physrevapplied.15.024028.","short":"M. Bartnick, M. Santandrea, J.P. Höpker, F. Thiele, R. Ricken, V. Quiring, C. Eigner, H. Herrmann, C. Silberhorn, T. Bartley, Physical Review Applied (2021)."},"type":"journal_article","doi":"10.1103/physrevapplied.15.024028","_id":"26221","date_updated":"2023-01-12T13:39:50Z","status":"public","date_created":"2021-10-15T09:24:10Z","publication_status":"published","publication_identifier":{"issn":["2331-7019"]},"author":[{"first_name":"Moritz","full_name":"Bartnick, Moritz","last_name":"Bartnick"},{"orcid":"0000-0001-5718-358X","full_name":"Santandrea, Matteo","first_name":"Matteo","id":"55095","last_name":"Santandrea"},{"first_name":"Jan Philipp","full_name":"Höpker, Jan Philipp","last_name":"Höpker","id":"33913"},{"last_name":"Thiele","id":"50819","first_name":"Frederik","full_name":"Thiele, Frederik","orcid":"0000-0003-0663-5587"},{"first_name":"Raimund","full_name":"Ricken, Raimund","last_name":"Ricken"},{"first_name":"Viktor","full_name":"Quiring, Viktor","last_name":"Quiring"},{"id":"13244","last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083","full_name":"Eigner, Christof","first_name":"Christof"},{"id":"216","last_name":"Herrmann","full_name":"Herrmann, Harald","first_name":"Harald"},{"last_name":"Silberhorn","id":"26263","first_name":"Christine","full_name":"Silberhorn, Christine"},{"last_name":"Bartley","id":"49683","first_name":"Tim","full_name":"Bartley, Tim"}],"department":[{"_id":"230"}],"publication":"Physical Review Applied","user_id":"33913","title":"Cryogenic Second-Harmonic Generation in Periodically Poled Lithium Niobate Waveguides"},{"title":"Production of waveguides made of materials from the KTP family","user_id":"40300","ipn":"US 2021/0033944 A1","status":"public","ipc":"G02F 1/355","date_created":"2023-01-23T14:34:53Z","author":[{"id":"40300","last_name":"Padberg","full_name":"Padberg, Laura","first_name":"Laura"},{"id":"13244","last_name":"Eigner","full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083","first_name":"Christof"},{"last_name":"Santandrea","full_name":"Santandrea, Matteo ","first_name":"Matteo "},{"last_name":"Silberhorn","id":"26263","first_name":"Christine","full_name":"Silberhorn, Christine"}],"department":[{"_id":"288"},{"_id":"623"},{"_id":"15"}],"publication_date":"2021-02-04","date_updated":"2023-01-23T14:35:06Z","_id":"38135","citation":{"ieee":"L. Padberg, C. Eigner, M. Santandrea, and C. Silberhorn, “Production of waveguides made of materials from the KTP family.” 2021.","short":"L. Padberg, C. Eigner, M. Santandrea, C. Silberhorn, (2021).","mla":"Padberg, Laura, et al. Production of Waveguides Made of Materials from the KTP Family. 2021.","bibtex":"@article{Padberg_Eigner_Santandrea_Silberhorn_2021, title={Production of waveguides made of materials from the KTP family}, author={Padberg, Laura and Eigner, Christof and Santandrea, Matteo and Silberhorn, Christine}, year={2021} }","ama":"Padberg L, Eigner C, Santandrea M, Silberhorn C. Production of waveguides made of materials from the KTP family. Published online 2021.","apa":"Padberg, L., Eigner, C., Santandrea, M., & Silberhorn, C. (2021). Production of waveguides made of materials from the KTP family.","chicago":"Padberg, Laura, Christof Eigner, Matteo Santandrea, and Christine Silberhorn. “Production of Waveguides Made of Materials from the KTP Family,” 2021."},"year":"2021","type":"patent"},{"title":"Improved non-linear devices for quantum applications","user_id":"27150","publication_status":"published","publication_identifier":{"issn":["1367-2630"]},"status":"public","project":[{"_id":"71","name":"TRR 142 - C1: TRR 142 - Subproject C1"}],"date_created":"2021-07-21T07:48:39Z","author":[{"full_name":"Gil López, Jano","first_name":"Jano","id":"51223","last_name":"Gil López"},{"full_name":"Santandrea, Matteo","orcid":"0000-0001-5718-358X","first_name":"Matteo","id":"55095","last_name":"Santandrea"},{"last_name":"Roland","first_name":"Ganaël","full_name":"Roland, Ganaël"},{"orcid":"0000-0003-4140-0556 ","full_name":"Brecht, Benjamin","first_name":"Benjamin","id":"27150","last_name":"Brecht"},{"first_name":"Christof","full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","id":"13244"},{"last_name":"Ricken","full_name":"Ricken, Raimund","first_name":"Raimund"},{"last_name":"Quiring","first_name":"Viktor","full_name":"Quiring, Viktor"},{"full_name":"Silberhorn, Christine","first_name":"Christine","id":"26263","last_name":"Silberhorn"}],"publication":"New Journal of Physics","department":[{"_id":"15"},{"_id":"288"},{"_id":"623"}],"article_number":"063082","doi":"10.1088/1367-2630/ac09fd","date_updated":"2023-02-03T12:27:32Z","_id":"22770","citation":{"bibtex":"@article{Gil López_Santandrea_Roland_Brecht_Eigner_Ricken_Quiring_Silberhorn_2021, title={Improved non-linear devices for quantum applications}, DOI={10.1088/1367-2630/ac09fd}, number={063082}, journal={New Journal of Physics}, author={Gil López, Jano and Santandrea, Matteo and Roland, Ganaël and Brecht, Benjamin and Eigner, Christof and Ricken, Raimund and Quiring, Viktor and Silberhorn, Christine}, year={2021} }","mla":"Gil López, Jano, et al. “Improved Non-Linear Devices for Quantum Applications.” New Journal of Physics, 063082, 2021, doi:10.1088/1367-2630/ac09fd.","apa":"Gil López, J., Santandrea, M., Roland, G., Brecht, B., Eigner, C., Ricken, R., Quiring, V., & Silberhorn, C. (2021). Improved non-linear devices for quantum applications. New Journal of Physics, Article 063082. https://doi.org/10.1088/1367-2630/ac09fd","ama":"Gil López J, Santandrea M, Roland G, et al. Improved non-linear devices for quantum applications. New Journal of Physics. Published online 2021. doi:10.1088/1367-2630/ac09fd","chicago":"Gil López, Jano, Matteo Santandrea, Ganaël Roland, Benjamin Brecht, Christof Eigner, Raimund Ricken, Viktor Quiring, and Christine Silberhorn. “Improved Non-Linear Devices for Quantum Applications.” New Journal of Physics, 2021. https://doi.org/10.1088/1367-2630/ac09fd.","ieee":"J. Gil López et al., “Improved non-linear devices for quantum applications,” New Journal of Physics, Art. no. 063082, 2021, doi: 10.1088/1367-2630/ac09fd.","short":"J. Gil López, M. Santandrea, G. Roland, B. Brecht, C. Eigner, R. Ricken, V. Quiring, C. Silberhorn, New Journal of Physics (2021)."},"type":"journal_article","year":"2021","language":[{"iso":"eng"}]},{"abstract":[{"lang":"eng","text":"Potassium titanyl phosphate (KTP) is a nonlinear optical material with applications in high-power frequency conversion or quasi-phase matching in submicron period domain grids. A prerequisite for these applications is a precise control and understanding of the poling mechanisms to enable the fabrication of high-grade domain grids. In contrast to the widely used material lithium niobate, the domain growth in KTP is less studied, because many standard methods, such as selective etching or polarization microscopy, provides less insight or are not applicable on non-polar surfaces, respectively. In this work, we present results of confocal Raman-spectroscopy of the ferroelectric domain structure in KTP. This analytical method allows for the visualization of domain grids of the non-polar KTP y-face and therefore more insight into the domain-growth and -structure in KTP, which can be used for improved domain fabrication."}],"title":"Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging","user_id":"13244","author":[{"full_name":"Brockmeier, Julian","first_name":"Julian","id":"44807","last_name":"Brockmeier"},{"full_name":"Mackwitz, Peter Walter Martin","first_name":"Peter Walter Martin","last_name":"Mackwitz"},{"first_name":"Michael","full_name":"Rüsing, Michael","orcid":"0000-0003-4682-4577","last_name":"Rüsing","id":"22501"},{"id":"13244","last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083","full_name":"Eigner, Christof","first_name":"Christof"},{"last_name":"Padberg","id":"40300","first_name":"Laura","full_name":"Padberg, Laura"},{"full_name":"Santandrea, Matteo","orcid":"0000-0001-5718-358X","first_name":"Matteo","id":"55095","last_name":"Santandrea"},{"first_name":"Christine","full_name":"Silberhorn, Christine","last_name":"Silberhorn","id":"26263"},{"first_name":"Artur","full_name":"Zrenner, Artur","orcid":"0000-0002-5190-0944","last_name":"Zrenner","id":"606"},{"last_name":"Berth","id":"53","first_name":"Gerhard","full_name":"Berth, Gerhard"}],"department":[{"_id":"15"},{"_id":"288"}],"publication":"Crystals","publication_identifier":{"issn":["2073-4352"]},"publication_status":"published","status":"public","date_created":"2021-09-07T08:09:36Z","date_updated":"2023-10-06T07:40:37Z","_id":"23826","article_number":"1086","doi":"10.3390/cryst11091086","year":"2021","citation":{"chicago":"Brockmeier, Julian, Peter Walter Martin Mackwitz, Michael Rüsing, Christof Eigner, Laura Padberg, Matteo Santandrea, Christine Silberhorn, Artur Zrenner, and Gerhard Berth. “Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging.” Crystals, 2021. https://doi.org/10.3390/cryst11091086.","ama":"Brockmeier J, Mackwitz PWM, Rüsing M, et al. Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging. Crystals. Published online 2021. doi:10.3390/cryst11091086","apa":"Brockmeier, J., Mackwitz, P. W. M., Rüsing, M., Eigner, C., Padberg, L., Santandrea, M., Silberhorn, C., Zrenner, A., & Berth, G. (2021). Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging. Crystals, Article 1086. https://doi.org/10.3390/cryst11091086","bibtex":"@article{Brockmeier_Mackwitz_Rüsing_Eigner_Padberg_Santandrea_Silberhorn_Zrenner_Berth_2021, title={Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging}, DOI={10.3390/cryst11091086}, number={1086}, journal={Crystals}, author={Brockmeier, Julian and Mackwitz, Peter Walter Martin and Rüsing, Michael and Eigner, Christof and Padberg, Laura and Santandrea, Matteo and Silberhorn, Christine and Zrenner, Artur and Berth, Gerhard}, year={2021} }","mla":"Brockmeier, Julian, et al. “Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging.” Crystals, 1086, 2021, doi:10.3390/cryst11091086.","short":"J. Brockmeier, P.W.M. Mackwitz, M. Rüsing, C. Eigner, L. Padberg, M. Santandrea, C. Silberhorn, A. Zrenner, G. Berth, Crystals (2021).","ieee":"J. Brockmeier et al., “Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging,” Crystals, Art. no. 1086, 2021, doi: 10.3390/cryst11091086."},"type":"journal_article","language":[{"iso":"eng"}]},{"publication_identifier":{"issn":["2469-9926","2469-9934"]},"volume":101,"publication_status":"published","status":"public","project":[{"_id":"71","name":"TRR 142 - Subproject C1"}],"date_created":"2021-01-20T08:31:09Z","author":[{"first_name":"M.","full_name":"Allgaier, M.","last_name":"Allgaier"},{"last_name":"Ansari","first_name":"V.","full_name":"Ansari, V."},{"last_name":"Donohue","first_name":"J. M.","full_name":"Donohue, J. 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