[{"year":"2023","citation":{"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","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.","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","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.","short":"L. Serino, J. Gil López, M. Stefszky, R. Ricken, C. Eigner, B. Brecht, C. Silberhorn, PRX Quantum 4 (2023).","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} }"},"intvolume":" 4","publication_status":"published","publication_identifier":{"issn":["2691-3399"]},"issue":"2","title":"Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States","doi":"10.1103/prxquantum.4.020306","date_updated":"2025-12-18T16:15:18Z","publisher":"American Physical Society (APS)","date_created":"2023-04-20T12:38:23Z","author":[{"first_name":"Laura","id":"88242","full_name":"Serino, Laura","last_name":"Serino"},{"first_name":"Jano","id":"51223","full_name":"Gil López, Jano","last_name":"Gil López"},{"full_name":"Stefszky, Michael","id":"42777","last_name":"Stefszky","first_name":"Michael"},{"first_name":"Raimund","full_name":"Ricken, Raimund","last_name":"Ricken"},{"id":"13244","full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","first_name":"Christof"},{"orcid":"0000-0003-4140-0556 ","last_name":"Brecht","full_name":"Brecht, Benjamin","id":"27150","first_name":"Benjamin"},{"full_name":"Silberhorn, Christine","id":"26263","last_name":"Silberhorn","first_name":"Christine"}],"volume":4,"status":"public","type":"journal_article","publication":"PRX Quantum","article_number":"020306","keyword":["General Physics and Astronomy","Mathematical Physics","Applied Mathematics","Electronic","Optical and Magnetic Materials","Electrical and Electronic Engineering","General Computer Science"],"language":[{"iso":"eng"}],"_id":"44081","user_id":"27150","department":[{"_id":"288"},{"_id":"623"},{"_id":"15"}]},{"_id":"30342","department":[{"_id":"15"},{"_id":"230"},{"_id":"623"}],"user_id":"33913","keyword":["Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"],"article_number":"108","language":[{"iso":"eng"}],"publication":"Optica","type":"journal_article","status":"public","publisher":"The Optical Society","date_updated":"2023-01-12T13:42:23Z","volume":9,"date_created":"2022-03-16T08:53:22Z","author":[{"id":"56843","full_name":"Lange, Nina Amelie","last_name":"Lange","first_name":"Nina Amelie"},{"first_name":"Jan Philipp","full_name":"Höpker, Jan Philipp","id":"33913","last_name":"Höpker"},{"full_name":"Ricken, Raimund","last_name":"Ricken","first_name":"Raimund"},{"first_name":"Viktor","last_name":"Quiring","full_name":"Quiring, Viktor"},{"first_name":"Christof","id":"13244","full_name":"Eigner, Christof","last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083"},{"last_name":"Silberhorn","id":"26263","full_name":"Silberhorn, Christine","first_name":"Christine"},{"first_name":"Tim","id":"49683","full_name":"Bartley, Tim","last_name":"Bartley"}],"title":"Cryogenic integrated spontaneous parametric down-conversion","doi":"10.1364/optica.445576","publication_identifier":{"issn":["2334-2536"]},"publication_status":"published","issue":"1","year":"2022","intvolume":" 9","citation":{"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","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.","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} }","short":"N.A. Lange, J.P. Höpker, R. Ricken, V. Quiring, C. Eigner, C. Silberhorn, T. Bartley, Optica 9 (2022).","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.","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."}},{"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"}],"publication":"Journal of Physics: Photonics","language":[{"iso":"eng"}],"keyword":["Electrical and Electronic Engineering","Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"],"year":"2022","issue":"3","title":"Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides","date_created":"2022-10-11T07:14:40Z","publisher":"IOP Publishing","status":"public","type":"journal_article","article_number":"034004","department":[{"_id":"15"},{"_id":"230"},{"_id":"623"}],"user_id":"83846","_id":"33672","intvolume":" 4","citation":{"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.","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).","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} }","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.","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"},"publication_identifier":{"issn":["2515-7647"]},"publication_status":"published","doi":"10.1088/2515-7647/ac6c63","volume":4,"author":[{"first_name":"Frederik","last_name":"Thiele","orcid":"0000-0003-0663-5587","id":"50819","full_name":"Thiele, Frederik"},{"last_name":"vom Bruch","full_name":"vom Bruch, Felix","id":"71245","first_name":"Felix"},{"first_name":"Julian","full_name":"Brockmeier, Julian","id":"44807","last_name":"Brockmeier"},{"full_name":"Protte, Maximilian","id":"46170","last_name":"Protte","first_name":"Maximilian"},{"last_name":"Hummel","id":"83846","full_name":"Hummel, Thomas","first_name":"Thomas"},{"first_name":"Raimund","full_name":"Ricken, Raimund","last_name":"Ricken"},{"first_name":"Viktor","full_name":"Quiring, Viktor","last_name":"Quiring"},{"first_name":"Sebastian","last_name":"Lengeling","full_name":"Lengeling, Sebastian","id":"44373"},{"first_name":"Harald","full_name":"Herrmann, Harald","id":"216","last_name":"Herrmann"},{"first_name":"Christof","id":"13244","full_name":"Eigner, Christof","last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083"},{"first_name":"Christine","id":"26263","full_name":"Silberhorn, Christine","last_name":"Silberhorn"},{"last_name":"Bartley","full_name":"Bartley, Tim","id":"49683","first_name":"Tim"}],"date_updated":"2023-01-12T15:16:35Z"},{"title":"Broadband optical Ta2O5 antennas for directional emission of light","date_created":"2022-05-18T16:39:17Z","publisher":"Optica Publishing Group","year":"2022","issue":"11","language":[{"iso":"eng"}],"keyword":["tet_topic_opticalantenna"],"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"}],"publication":"Optics Express","doi":"10.1364/oe.455815","volume":30,"author":[{"first_name":"Henna","id":"53444","full_name":"Farheen, Henna","orcid":"0000-0001-7730-3489","last_name":"Farheen"},{"full_name":"Yan, Lok-Yee","last_name":"Yan","first_name":"Lok-Yee"},{"last_name":"Quiring","full_name":"Quiring, Viktor","first_name":"Viktor"},{"full_name":"Eigner, Christof","id":"13244","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","first_name":"Christof"},{"id":"30525","full_name":"Zentgraf, Thomas","last_name":"Zentgraf","orcid":"0000-0002-8662-1101","first_name":"Thomas"},{"first_name":"Stefan","full_name":"Linden, Stefan","last_name":"Linden"},{"first_name":"Jens","full_name":"Förstner, Jens","id":"158","last_name":"Förstner","orcid":"0000-0001-7059-9862"},{"first_name":"Viktor","last_name":"Myroshnychenko","id":"46371","full_name":"Myroshnychenko, Viktor"}],"date_updated":"2024-07-22T07:44:58Z","intvolume":" 30","page":"19288","citation":{"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","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.","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.","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","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.","short":"H. Farheen, L.-Y. Yan, V. Quiring, C. Eigner, T. Zentgraf, S. Linden, J. Förstner, V. Myroshnychenko, Optics Express 30 (2022) 19288.","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} }"},"publication_identifier":{"issn":["1094-4087"]},"publication_status":"published","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"user_id":"158","_id":"31329","project":[{"grant_number":"231447078","_id":"75","name":"TRR 142 - C5: TRR 142 - Subproject C5"},{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"status":"public","type":"journal_article"},{"intvolume":" 129","citation":{"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","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.","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} }","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","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."},"year":"2022","issue":"15","publication_identifier":{"issn":["0031-9007","1079-7114"]},"publication_status":"published","doi":"10.1103/physrevlett.129.150501","title":"Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing","volume":129,"date_created":"2023-01-24T08:05:44Z","author":[{"first_name":"Evan","last_name":"Meyer-Scott","full_name":"Meyer-Scott, Evan"},{"first_name":"Nidhin","full_name":"Prasannan, Nidhin","id":"71403","last_name":"Prasannan"},{"first_name":"Ish","last_name":"Dhand","full_name":"Dhand, Ish"},{"orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","id":"13244","full_name":"Eigner, Christof","first_name":"Christof"},{"last_name":"Quiring","full_name":"Quiring, Viktor","first_name":"Viktor"},{"first_name":"Sonja","last_name":"Barkhofen","full_name":"Barkhofen, Sonja","id":"48188"},{"last_name":"Brecht","orcid":"0000-0003-4140-0556 ","full_name":"Brecht, Benjamin","id":"27150","first_name":"Benjamin"},{"first_name":"Martin B.","last_name":"Plenio","full_name":"Plenio, Martin B."},{"first_name":"Christine","full_name":"Silberhorn, Christine","id":"26263","last_name":"Silberhorn"}],"date_updated":"2023-01-31T07:51:51Z","publisher":"American Physical Society (APS)","status":"public","publication":"Physical Review Letters","type":"journal_article","language":[{"iso":"eng"}],"keyword":["General Physics and Astronomy"],"article_number":"150501","department":[{"_id":"623"}],"user_id":"26263","_id":"39025"},{"user_id":"48188","department":[{"_id":"288"},{"_id":"15"},{"_id":"623"},{"_id":"230"}],"_id":"40273","language":[{"iso":"eng"}],"article_number":"150501","keyword":["General Physics and Astronomy"],"type":"journal_article","publication":"Physical Review Letters","status":"public","date_created":"2023-01-26T10:21:24Z","author":[{"first_name":"Evan","full_name":"Meyer-Scott, Evan","last_name":"Meyer-Scott"},{"first_name":"Nidhin","id":"71403","full_name":"Prasannan, Nidhin","last_name":"Prasannan"},{"full_name":"Dhand, Ish","last_name":"Dhand","first_name":"Ish"},{"full_name":"Eigner, Christof","id":"13244","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","first_name":"Christof"},{"first_name":"Viktor","full_name":"Quiring, Viktor","last_name":"Quiring"},{"last_name":"Barkhofen","full_name":"Barkhofen, Sonja","id":"48188","first_name":"Sonja"},{"last_name":"Brecht","orcid":"0000-0003-4140-0556 ","id":"27150","full_name":"Brecht, Benjamin","first_name":"Benjamin"},{"first_name":"Martin B.","last_name":"Plenio","full_name":"Plenio, Martin B."},{"full_name":"Silberhorn, Christine","id":"26263","last_name":"Silberhorn","first_name":"Christine"}],"volume":129,"publisher":"American Physical Society (APS)","date_updated":"2023-02-02T08:53:55Z","doi":"10.1103/physrevlett.129.150501","title":"Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing","issue":"15","publication_status":"published","publication_identifier":{"issn":["0031-9007","1079-7114"]},"citation":{"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","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} }","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).","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","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."},"intvolume":" 129","year":"2022"},{"title":"Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity","doi":"10.1364/CLEO_AT.2022.JTu3A.17","conference":{"location":"San Jose, California United States","end_date":"2022-05-20","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"}],"publisher":"Optica Publishing Group","date_updated":"2023-04-21T11:10:06Z","date_created":"2023-04-16T01:31:32Z","author":[{"first_name":"Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072","full_name":"Meier, Torsten","id":"344"},{"last_name":"Hoepker","full_name":"Hoepker, Jan Philipp","first_name":"Jan Philipp"},{"last_name":"Protte","id":"46170","full_name":"Protte, Maximilian","first_name":"Maximilian"},{"first_name":"Christof","full_name":"Eigner, Christof","id":"13244","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner"},{"first_name":"Christine","last_name":"Silberhorn","id":"26263","full_name":"Silberhorn, Christine"},{"last_name":"Sharapova","id":"60286","full_name":"Sharapova, Polina R.","first_name":"Polina R."},{"last_name":"Sperling","orcid":"0000-0002-5844-3205","full_name":"Sperling, Jan","id":"75127","first_name":"Jan"},{"last_name":"Bartley","full_name":"Bartley, Tim","id":"49683","first_name":"Tim"}],"year":"2022","page":"JTu3A. 17","citation":{"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","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} }","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.","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.","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.","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"},"publication_identifier":{"isbn":["978-1-957171-05-0"]},"publication_status":"published","language":[{"iso":"eng"}],"_id":"43744","department":[{"_id":"293"},{"_id":"35"},{"_id":"15"},{"_id":"170"},{"_id":"230"},{"_id":"35"},{"_id":"482"},{"_id":"706"},{"_id":"288"}],"user_id":"16199","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."}],"status":"public","publication":"Conference on Lasers and Electro-Optics: Applications and Technology","type":"conference"},{"publication_identifier":{"issn":["2073-4352"]},"citation":{"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.","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.","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","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} }","short":"L. Padberg, V. Quiring, A. Bocchini, M. Santandrea, U. Gerstmann, W.G. Schmidt, C. Silberhorn, C. Eigner, Crystals 12 (2022) 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.","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"},"intvolume":" 12","page":"1359","year":"2022","date_created":"2022-09-26T13:12:48Z","author":[{"full_name":"Padberg, Laura","id":"40300","last_name":"Padberg","first_name":"Laura"},{"last_name":"Quiring","full_name":"Quiring, Viktor","first_name":"Viktor"},{"first_name":"Adriana","last_name":"Bocchini","orcid":"0000-0002-2134-3075","full_name":"Bocchini, Adriana","id":"58349"},{"first_name":"Matteo","orcid":"0000-0001-5718-358X","last_name":"Santandrea","full_name":"Santandrea, Matteo","id":"55095"},{"id":"171","full_name":"Gerstmann, Uwe","orcid":"0000-0002-4476-223X","last_name":"Gerstmann","first_name":"Uwe"},{"first_name":"Wolf Gero","last_name":"Schmidt","orcid":"0000-0002-2717-5076","full_name":"Schmidt, Wolf Gero","id":"468"},{"id":"26263","full_name":"Silberhorn, Christine","last_name":"Silberhorn","first_name":"Christine"},{"full_name":"Eigner, Christof","id":"13244","last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083","first_name":"Christof"}],"volume":12,"date_updated":"2023-04-21T11:07:11Z","oa":"1","main_file_link":[{"open_access":"1"}],"doi":"10.3390/cryst12101359","title":"DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray Tracking","type":"journal_article","publication":"Crystals","status":"public","abstract":[{"lang":"eng","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."}],"user_id":"171","department":[{"_id":"15"},{"_id":"288"},{"_id":"623"},{"_id":"170"},{"_id":"295"},{"_id":"230"},{"_id":"429"},{"_id":"35"},{"_id":"790"}],"project":[{"_id":"53","name":"TRR 142: TRR 142"},{"_id":"55","name":"TRR 142 - B: TRR 142 - Project Area B"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"name":"TRR 142 - B07: TRR 142 - Subproject B07","_id":"168"},{"_id":"54","name":"TRR 142 - A: TRR 142 - Project Area A"},{"_id":"166","name":"TRR 142 - A11: TRR 142 - Subproject A11"}],"_id":"33484","language":[{"iso":"eng"}]},{"file_date_updated":"2021-09-07T07:41:04Z","article_type":"original","user_id":"49683","department":[{"_id":"15"},{"_id":"61"},{"_id":"230"}],"project":[{"_id":"53","name":"TRR 142"}],"_id":"23728","status":"public","type":"journal_article","doi":"10.1088/2515-7647/ac105b","author":[{"last_name":"Höpker","full_name":"Höpker, Jan Philipp","id":"33913","first_name":"Jan Philipp"},{"first_name":"Varun B","full_name":"Verma, Varun B","last_name":"Verma"},{"id":"46170","full_name":"Protte, Maximilian","last_name":"Protte","first_name":"Maximilian"},{"first_name":"Raimund","full_name":"Ricken, Raimund","last_name":"Ricken"},{"full_name":"Quiring, Viktor","last_name":"Quiring","first_name":"Viktor"},{"first_name":"Christof","last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083","full_name":"Eigner, Christof","id":"13244"},{"first_name":"Lena","full_name":"Ebers, Lena","id":"40428","last_name":"Ebers"},{"first_name":"Manfred","id":"48077","full_name":"Hammer, Manfred","orcid":"0000-0002-6331-9348","last_name":"Hammer"},{"last_name":"Förstner","orcid":"0000-0001-7059-9862","id":"158","full_name":"Förstner, Jens","first_name":"Jens"},{"last_name":"Silberhorn","full_name":"Silberhorn, Christine","id":"26263","first_name":"Christine"},{"last_name":"Mirin","full_name":"Mirin, Richard P","first_name":"Richard P"},{"first_name":"Sae","last_name":"Woo Nam","full_name":"Woo Nam, Sae"},{"first_name":"Tim","last_name":"Bartley","full_name":"Bartley, Tim","id":"49683"}],"volume":3,"date_updated":"2022-10-25T07:34:42Z","oa":"1","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.","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.","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","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","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} }","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.","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."},"page":"034022","intvolume":" 3","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["2515-7647"]},"language":[{"iso":"eng"}],"ddc":["530"],"file":[{"file_id":"23825","file_name":"2021-07 Höpker J._Phys._Photonics_3_034022.pdf","access_level":"open_access","file_size":1097820,"date_created":"2021-09-07T07:41:04Z","creator":"fossie","date_updated":"2021-09-07T07:41:04Z","relation":"main_file","content_type":"application/pdf"}],"abstract":[{"lang":"eng","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."}],"publication":"Journal of Physics: Photonics","title":"Integrated superconducting nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides","date_created":"2021-09-03T08:04:06Z","year":"2021"},{"year":"2021","citation":{"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.","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","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.","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} }","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).","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"},"publication_status":"published","publication_identifier":{"issn":["2331-7019"]},"title":"Cryogenic Second-Harmonic Generation in Periodically Poled Lithium Niobate Waveguides","doi":"10.1103/physrevapplied.15.024028","date_updated":"2023-01-12T13:39:50Z","date_created":"2021-10-15T09:24:10Z","author":[{"full_name":"Bartnick, Moritz","last_name":"Bartnick","first_name":"Moritz"},{"first_name":"Matteo","id":"55095","full_name":"Santandrea, Matteo","last_name":"Santandrea","orcid":"0000-0001-5718-358X"},{"id":"33913","full_name":"Höpker, Jan Philipp","last_name":"Höpker","first_name":"Jan Philipp"},{"first_name":"Frederik","full_name":"Thiele, Frederik","id":"50819","last_name":"Thiele","orcid":"0000-0003-0663-5587"},{"full_name":"Ricken, Raimund","last_name":"Ricken","first_name":"Raimund"},{"last_name":"Quiring","full_name":"Quiring, Viktor","first_name":"Viktor"},{"first_name":"Christof","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","full_name":"Eigner, Christof","id":"13244"},{"last_name":"Herrmann","id":"216","full_name":"Herrmann, Harald","first_name":"Harald"},{"first_name":"Christine","last_name":"Silberhorn","full_name":"Silberhorn, Christine","id":"26263"},{"first_name":"Tim","last_name":"Bartley","id":"49683","full_name":"Bartley, Tim"}],"status":"public","type":"journal_article","publication":"Physical Review Applied","language":[{"iso":"eng"}],"_id":"26221","user_id":"33913","department":[{"_id":"230"}]},{"article_number":"1086","language":[{"iso":"eng"}],"_id":"23826","department":[{"_id":"15"},{"_id":"288"}],"user_id":"13244","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."}],"status":"public","publication":"Crystals","type":"journal_article","title":"Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging","doi":"10.3390/cryst11091086","date_updated":"2023-10-06T07:40:37Z","date_created":"2021-09-07T08:09:36Z","author":[{"first_name":"Julian","id":"44807","full_name":"Brockmeier, Julian","last_name":"Brockmeier"},{"last_name":"Mackwitz","full_name":"Mackwitz, Peter Walter Martin","first_name":"Peter Walter Martin"},{"orcid":"0000-0003-4682-4577","last_name":"Rüsing","id":"22501","full_name":"Rüsing, Michael","first_name":"Michael"},{"last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083","full_name":"Eigner, Christof","id":"13244","first_name":"Christof"},{"first_name":"Laura","full_name":"Padberg, Laura","id":"40300","last_name":"Padberg"},{"id":"55095","full_name":"Santandrea, Matteo","last_name":"Santandrea","orcid":"0000-0001-5718-358X","first_name":"Matteo"},{"last_name":"Silberhorn","id":"26263","full_name":"Silberhorn, Christine","first_name":"Christine"},{"first_name":"Artur","orcid":"0000-0002-5190-0944","last_name":"Zrenner","full_name":"Zrenner, Artur","id":"606"},{"last_name":"Berth","full_name":"Berth, Gerhard","id":"53","first_name":"Gerhard"}],"year":"2021","citation":{"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","short":"J. Brockmeier, P.W.M. Mackwitz, M. Rüsing, C. Eigner, L. Padberg, M. Santandrea, C. Silberhorn, A. Zrenner, G. Berth, Crystals (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.","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} }","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.","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"},"publication_identifier":{"issn":["2073-4352"]},"publication_status":"published"},{"status":"public","type":"patent","department":[{"_id":"288"},{"_id":"623"},{"_id":"15"}],"user_id":"40300","_id":"38135","publication_date":"2021-02-04","citation":{"ama":"Padberg L, Eigner C, Santandrea M, Silberhorn C. Production of waveguides made of materials from the KTP family. Published online 2021.","ieee":"L. Padberg, C. Eigner, M. Santandrea, and C. Silberhorn, “Production of waveguides made of materials from the KTP family.” 2021.","chicago":"Padberg, Laura, Christof Eigner, Matteo Santandrea, and Christine Silberhorn. “Production of Waveguides Made of Materials from the KTP Family,” 2021.","apa":"Padberg, L., Eigner, C., Santandrea, M., & Silberhorn, C. (2021). Production of waveguides made of materials from the KTP family.","mla":"Padberg, Laura, et al. Production of Waveguides Made of Materials from the KTP Family. 2021.","short":"L. Padberg, C. Eigner, M. Santandrea, C. 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(2020). Spatially single mode photon pair source at 800 nm in periodically poled Rubidium exchanged KTP waveguides. Optics Express, 28(22), Article 32925–32935. https://doi.org/10.1364/oe.399483","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={10.1364/oe.399483}, 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.” Optics Express, vol. 28, no. 22, 32925–32935, 2020, doi:10.1364/oe.399483.","short":"C. Eigner, L. Padberg, M. Santandrea, H. Herrmann, B. Brecht, C. Silberhorn, Optics Express 28 (2020).","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.” Optics Express 28, no. 22 (2020). https://doi.org/10.1364/oe.399483.","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,” Optics Express, vol. 28, no. 22, Art. no. 32925–32935, 2020, doi: 10.1364/oe.399483.","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. 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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."}],"publication":"Physical Review Research","language":[{"iso":"eng"}],"ddc":["530"],"external_id":{"isi":["000604206300002"]},"year":"2020","issue":"4","quality_controlled":"1","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","status":"public","type":"journal_article","file_date_updated":"2020-10-02T07:37:24Z","article_type":"original","isi":"1","article_number":"043002","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"},{"name":"TRR 142 - Project Area B","_id":"55"},{"_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"}],"intvolume":" 2","citation":{"ieee":"F. Schmidt et al., “Free and defect-bound (bi)polarons in LiNbO3: Atomic structure and spectroscopic signatures from ab initio calculations,” Physical Review Research, vol. 2, no. 4, Art. no. 043002, 2020, doi: 10.1103/PhysRevResearch.2.043002.","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.” Physical Review Research 2, no. 4 (2020). https://doi.org/10.1103/PhysRevResearch.2.043002.","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. Physical Review Research. 2020;2(4). doi:10.1103/PhysRevResearch.2.043002","apa":"Schmidt, F., Kozub, A. L., Biktagirov, T., Eigner, C., Silberhorn, C., Schindlmayr, A., Schmidt, W. G., & Gerstmann, U. (2020). Free and defect-bound (bi)polarons in LiNbO3: Atomic structure and spectroscopic signatures from ab initio calculations. Physical Review Research, 2(4), Article 043002. https://doi.org/10.1103/PhysRevResearch.2.043002","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.” Physical Review Research, vol. 2, no. 4, 043002, American Physical Society, 2020, doi:10.1103/PhysRevResearch.2.043002.","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={10.1103/PhysRevResearch.2.043002}, 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} }"},"publication_identifier":{"eissn":["2643-1564"]},"has_accepted_license":"1","publication_status":"published","doi":"10.1103/PhysRevResearch.2.043002","volume":2,"author":[{"full_name":"Schmidt, Falko","id":"35251","last_name":"Schmidt","orcid":"0000-0002-5071-5528","first_name":"Falko"},{"first_name":"Agnieszka L.","last_name":"Kozub","orcid":"https://orcid.org/0000-0001-6584-0201","full_name":"Kozub, Agnieszka L.","id":"77566"},{"first_name":"Timur","id":"65612","full_name":"Biktagirov, Timur","last_name":"Biktagirov"},{"first_name":"Christof","id":"13244","full_name":"Eigner, Christof","last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083"},{"full_name":"Silberhorn, Christine","id":"26263","last_name":"Silberhorn","first_name":"Christine"},{"first_name":"Arno","id":"458","full_name":"Schindlmayr, Arno","orcid":"0000-0002-4855-071X","last_name":"Schindlmayr"},{"first_name":"Wolf Gero","last_name":"Schmidt","orcid":"0000-0002-2717-5076","full_name":"Schmidt, Wolf Gero","id":"468"},{"first_name":"Uwe","id":"171","full_name":"Gerstmann, Uwe","orcid":"0000-0002-4476-223X","last_name":"Gerstmann"}],"date_updated":"2023-04-20T16:06:21Z","oa":"1"},{"doi":"10.1103/PhysRevMaterials.4.124402","title":"Understanding gray track formation in KTP: Ti^3+ centers studied from first principles","date_created":"2020-12-08T08:05:30Z","author":[{"first_name":"Adriana","full_name":"Bocchini, Adriana","id":"58349","orcid":"https://orcid.org/0000-0002-2134-3075","last_name":"Bocchini"},{"id":"13244","full_name":"Eigner, Christof","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","first_name":"Christof"},{"first_name":"Christine","last_name":"Silberhorn","full_name":"Silberhorn, Christine","id":"26263"},{"first_name":"Wolf Gero","id":"468","full_name":"Schmidt, Wolf Gero","last_name":"Schmidt","orcid":"0000-0002-2717-5076"},{"orcid":"0000-0002-4476-223X","last_name":"Gerstmann","full_name":"Gerstmann, Uwe","id":"171","first_name":"Uwe"}],"volume":4,"date_updated":"2023-04-21T11:31:05Z","publisher":"American Physical Society","citation":{"apa":"Bocchini, A., Eigner, C., Silberhorn, C., Schmidt, W. G., & Gerstmann, U. (2020). Understanding gray track formation in KTP: Ti^3+ centers studied from first principles. Phys. Rev. Materials, 4, 124402. https://doi.org/10.1103/PhysRevMaterials.4.124402","short":"A. Bocchini, C. Eigner, C. Silberhorn, W.G. Schmidt, U. Gerstmann, Phys. Rev. Materials 4 (2020) 124402.","bibtex":"@article{Bocchini_Eigner_Silberhorn_Schmidt_Gerstmann_2020, title={Understanding gray track formation in KTP: Ti^3+ centers studied from first principles}, volume={4}, DOI={10.1103/PhysRevMaterials.4.124402}, journal={Phys. Rev. Materials}, publisher={American Physical Society}, author={Bocchini, Adriana and Eigner, Christof and Silberhorn, Christine and Schmidt, Wolf Gero and Gerstmann, Uwe}, year={2020}, pages={124402} }","mla":"Bocchini, Adriana, et al. “Understanding Gray Track Formation in KTP: Ti^3+ Centers Studied from First Principles.” Phys. Rev. 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