[{"date_created":"2022-03-16T08:53:22Z","keyword":["Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"],"type":"journal_article","department":[{"_id":"15"},{"_id":"230"},{"_id":"623"}],"issue":"1","publication":"Optica","article_number":"108","language":[{"iso":"eng"}],"doi":"10.1364/optica.445576","title":"Cryogenic integrated spontaneous parametric down-conversion","year":"2022","author":[{"last_name":"Lange","first_name":"Nina Amelie","full_name":"Lange, Nina Amelie","id":"56843"},{"full_name":"Höpker, Jan Philipp","first_name":"Jan Philipp","last_name":"Höpker","id":"33913"},{"full_name":"Ricken, Raimund","first_name":"Raimund","last_name":"Ricken"},{"last_name":"Quiring","first_name":"Viktor","full_name":"Quiring, Viktor"},{"full_name":"Eigner, Christof","first_name":"Christof","last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083","id":"13244"},{"id":"26263","full_name":"Silberhorn, Christine","first_name":"Christine","last_name":"Silberhorn"},{"id":"49683","first_name":"Tim","last_name":"Bartley","full_name":"Bartley, Tim"}],"publication_identifier":{"issn":["2334-2536"]},"publication_status":"published","date_updated":"2023-01-12T13:42:23Z","intvolume":"         9","citation":{"mla":"Lange, Nina Amelie, et al. “Cryogenic Integrated Spontaneous Parametric Down-Conversion.” <i>Optica</i>, vol. 9, no. 1, 108, The Optical Society, 2022, doi:<a href=\"https://doi.org/10.1364/optica.445576\">10.1364/optica.445576</a>.","ama":"Lange NA, Höpker JP, Ricken R, et al. Cryogenic integrated spontaneous parametric down-conversion. <i>Optica</i>. 2022;9(1). doi:<a href=\"https://doi.org/10.1364/optica.445576\">10.1364/optica.445576</a>","bibtex":"@article{Lange_Höpker_Ricken_Quiring_Eigner_Silberhorn_Bartley_2022, title={Cryogenic integrated spontaneous parametric down-conversion}, volume={9}, DOI={<a href=\"https://doi.org/10.1364/optica.445576\">10.1364/optica.445576</a>}, 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} }","apa":"Lange, N. A., Höpker, J. P., Ricken, R., Quiring, V., Eigner, C., Silberhorn, C., &#38; Bartley, T. (2022). Cryogenic integrated spontaneous parametric down-conversion. <i>Optica</i>, <i>9</i>(1), Article 108. <a href=\"https://doi.org/10.1364/optica.445576\">https://doi.org/10.1364/optica.445576</a>","ieee":"N. A. Lange <i>et al.</i>, “Cryogenic integrated spontaneous parametric down-conversion,” <i>Optica</i>, vol. 9, no. 1, Art. no. 108, 2022, doi: <a href=\"https://doi.org/10.1364/optica.445576\">10.1364/optica.445576</a>.","short":"N.A. Lange, J.P. Höpker, R. Ricken, V. Quiring, C. Eigner, C. Silberhorn, T. Bartley, Optica 9 (2022).","chicago":"Lange, Nina Amelie, Jan Philipp Höpker, Raimund Ricken, Viktor Quiring, Christof Eigner, Christine Silberhorn, and Tim Bartley. “Cryogenic Integrated Spontaneous Parametric Down-Conversion.” <i>Optica</i> 9, no. 1 (2022). <a href=\"https://doi.org/10.1364/optica.445576\">https://doi.org/10.1364/optica.445576</a>."},"publisher":"The Optical Society","_id":"30342","user_id":"33913","volume":9,"status":"public"},{"status":"public","_id":"33672","publisher":"IOP Publishing","volume":4,"user_id":"83846","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.” <i>Journal of Physics: Photonics</i> 4, no. 3 (2022). <a href=\"https://doi.org/10.1088/2515-7647/ac6c63\">https://doi.org/10.1088/2515-7647/ac6c63</a>.","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 <i>et al.</i>, “Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides,” <i>Journal of Physics: Photonics</i>, vol. 4, no. 3, Art. no. 034004, 2022, doi: <a href=\"https://doi.org/10.1088/2515-7647/ac6c63\">10.1088/2515-7647/ac6c63</a>.","apa":"Thiele, F., vom Bruch, F., Brockmeier, J., Protte, M., Hummel, T., Ricken, R., Quiring, V., Lengeling, S., Herrmann, H., Eigner, C., Silberhorn, C., &#38; Bartley, T. (2022). Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides. <i>Journal of Physics: Photonics</i>, <i>4</i>(3), Article 034004. <a href=\"https://doi.org/10.1088/2515-7647/ac6c63\">https://doi.org/10.1088/2515-7647/ac6c63</a>","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={<a href=\"https://doi.org/10.1088/2515-7647/ac6c63\">10.1088/2515-7647/ac6c63</a>}, 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} }","ama":"Thiele F, vom Bruch F, Brockmeier J, et al. Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides. <i>Journal of Physics: Photonics</i>. 2022;4(3). doi:<a href=\"https://doi.org/10.1088/2515-7647/ac6c63\">10.1088/2515-7647/ac6c63</a>","mla":"Thiele, Frederik, et al. “Cryogenic Electro-Optic Modulation in Titanium in-Diffused Lithium Niobate Waveguides.” <i>Journal of Physics: Photonics</i>, vol. 4, no. 3, 034004, IOP Publishing, 2022, doi:<a href=\"https://doi.org/10.1088/2515-7647/ac6c63\">10.1088/2515-7647/ac6c63</a>."},"publication_identifier":{"issn":["2515-7647"]},"author":[{"first_name":"Frederik","last_name":"Thiele","orcid":"0000-0003-0663-5587","full_name":"Thiele, Frederik","id":"50819"},{"id":"71245","full_name":"vom Bruch, Felix","first_name":"Felix","last_name":"vom Bruch"},{"id":"44807","first_name":"Julian","last_name":"Brockmeier","full_name":"Brockmeier, Julian"},{"id":"46170","first_name":"Maximilian","last_name":"Protte","full_name":"Protte, Maximilian"},{"id":"83846","first_name":"Thomas","last_name":"Hummel","full_name":"Hummel, Thomas"},{"first_name":"Raimund","last_name":"Ricken","full_name":"Ricken, Raimund"},{"last_name":"Quiring","first_name":"Viktor","full_name":"Quiring, Viktor"},{"id":"44373","last_name":"Lengeling","first_name":"Sebastian","full_name":"Lengeling, Sebastian"},{"full_name":"Herrmann, Harald","last_name":"Herrmann","first_name":"Harald","id":"216"},{"full_name":"Eigner, Christof","last_name":"Eigner","first_name":"Christof","orcid":"https://orcid.org/0000-0002-5693-3083","id":"13244"},{"full_name":"Silberhorn, Christine","first_name":"Christine","last_name":"Silberhorn","id":"26263"},{"id":"49683","full_name":"Bartley, Tim","last_name":"Bartley","first_name":"Tim"}],"year":"2022","title":"Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides","intvolume":"         4","date_updated":"2023-01-12T15:16:35Z","publication_status":"published","language":[{"iso":"eng"}],"article_number":"034004","doi":"10.1088/2515-7647/ac6c63","publication":"Journal of Physics: Photonics","issue":"3","abstract":[{"text":"<jats:title>Abstract</jats:title>\r\n               <jats:p>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 <jats:inline-formula>\r\n                     <jats:tex-math><?CDATA $V_{\\pi/2}$?></jats:tex-math>\r\n                     <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" overflow=\"scroll\">\r\n                        <mml:msub>\r\n                           <mml:mi>V</mml:mi>\r\n                           <mml:mrow>\r\n                              <mml:mi>π</mml:mi>\r\n                              <mml:mrow>\r\n                                 <mml:mo>/</mml:mo>\r\n                              </mml:mrow>\r\n                              <mml:mn>2</mml:mn>\r\n                           </mml:mrow>\r\n                        </mml:msub>\r\n                     </mml:math>\r\n                     <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"jpphotonac6c63ieqn1.gif\" xlink:type=\"simple\" />\r\n                  </jats:inline-formula> 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<jats:inline-formula>\r\n                     <jats:tex-math><?CDATA $\\,\\mathrm{K}$?></jats:tex-math>\r\n                     <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" overflow=\"scroll\">\r\n                        <mml:mrow>\r\n                           <mml:mi mathvariant=\"normal\">K</mml:mi>\r\n                        </mml:mrow>\r\n                     </mml:math>\r\n                     <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"jpphotonac6c63ieqn2.gif\" xlink:type=\"simple\" />\r\n                  </jats:inline-formula>. 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<jats:inline-formula>\r\n                     <jats:tex-math><?CDATA $\\,\\mathrm{nm}$?></jats:tex-math>\r\n                     <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" overflow=\"scroll\">\r\n                        <mml:mrow>\r\n                           <mml:mi mathvariant=\"normal\">n</mml:mi>\r\n                           <mml:mi mathvariant=\"normal\">m</mml:mi>\r\n                        </mml:mrow>\r\n                     </mml:math>\r\n                     <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"jpphotonac6c63ieqn3.gif\" xlink:type=\"simple\" />\r\n                  </jats:inline-formula> while cooling the device down to 5<jats:inline-formula>\r\n                     <jats:tex-math><?CDATA $\\,\\mathrm{K}$?></jats:tex-math>\r\n                     <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" overflow=\"scroll\">\r\n                        <mml:mrow>\r\n                           <mml:mi mathvariant=\"normal\">K</mml:mi>\r\n                        </mml:mrow>\r\n                     </mml:math>\r\n                     <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"jpphotonac6c63ieqn4.gif\" xlink:type=\"simple\" />\r\n                  </jats:inline-formula>. The polarisation converter uses periodic poling to phasematch the two orthogonal polarisations. The phasematched wavelength of the utilised poling changes by 112<jats:inline-formula>\r\n                     <jats:tex-math><?CDATA $\\,\\mathrm{nm}$?></jats:tex-math>\r\n                     <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" overflow=\"scroll\">\r\n                        <mml:mrow>\r\n                           <mml:mi mathvariant=\"normal\">n</mml:mi>\r\n                           <mml:mi mathvariant=\"normal\">m</mml:mi>\r\n                        </mml:mrow>\r\n                     </mml:math>\r\n                     <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"jpphotonac6c63ieqn5.gif\" xlink:type=\"simple\" />\r\n                  </jats:inline-formula> when cooling to 5<jats:inline-formula>\r\n                     <jats:tex-math><?CDATA $\\,\\mathrm{K}$?></jats:tex-math>\r\n                     <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" overflow=\"scroll\">\r\n                        <mml:mrow>\r\n                           <mml:mi mathvariant=\"normal\">K</mml:mi>\r\n                        </mml:mrow>\r\n                     </mml:math>\r\n                     <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"jpphotonac6c63ieqn6.gif\" xlink:type=\"simple\" />\r\n                  </jats:inline-formula>.</jats:p>","lang":"eng"}],"date_created":"2022-10-11T07:14:40Z","department":[{"_id":"15"},{"_id":"230"},{"_id":"623"}],"keyword":["Electrical and Electronic Engineering","Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"],"type":"journal_article"},{"status":"public","publisher":"AIP Publishing","_id":"33673","volume":7,"user_id":"83846","citation":{"ieee":"F. Thiele, T. Hummel, M. Protte, and T. Bartley, “Opto-electronic bias of a superconducting nanowire single photon detector using a cryogenic photodiode,” <i>APL Photonics</i>, vol. 7, no. 8, Art. no. 081303, 2022, doi: <a href=\"https://doi.org/10.1063/5.0097506\">10.1063/5.0097506</a>.","apa":"Thiele, F., Hummel, T., Protte, M., &#38; Bartley, T. (2022). Opto-electronic bias of a superconducting nanowire single photon detector using a cryogenic photodiode. <i>APL Photonics</i>, <i>7</i>(8), Article 081303. <a href=\"https://doi.org/10.1063/5.0097506\">https://doi.org/10.1063/5.0097506</a>","chicago":"Thiele, Frederik, Thomas Hummel, Maximilian Protte, and Tim Bartley. “Opto-Electronic Bias of a Superconducting Nanowire Single Photon Detector Using a Cryogenic Photodiode.” <i>APL Photonics</i> 7, no. 8 (2022). <a href=\"https://doi.org/10.1063/5.0097506\">https://doi.org/10.1063/5.0097506</a>.","short":"F. Thiele, T. Hummel, M. Protte, T. Bartley, APL Photonics 7 (2022).","mla":"Thiele, Frederik, et al. “Opto-Electronic Bias of a Superconducting Nanowire Single Photon Detector Using a Cryogenic Photodiode.” <i>APL Photonics</i>, vol. 7, no. 8, 081303, AIP Publishing, 2022, doi:<a href=\"https://doi.org/10.1063/5.0097506\">10.1063/5.0097506</a>.","bibtex":"@article{Thiele_Hummel_Protte_Bartley_2022, title={Opto-electronic bias of a superconducting nanowire single photon detector using a cryogenic photodiode}, volume={7}, DOI={<a href=\"https://doi.org/10.1063/5.0097506\">10.1063/5.0097506</a>}, number={8081303}, journal={APL Photonics}, publisher={AIP Publishing}, author={Thiele, Frederik and Hummel, Thomas and Protte, Maximilian and Bartley, Tim}, year={2022} }","ama":"Thiele F, Hummel T, Protte M, Bartley T. Opto-electronic bias of a superconducting nanowire single photon detector using a cryogenic photodiode. <i>APL Photonics</i>. 2022;7(8). doi:<a href=\"https://doi.org/10.1063/5.0097506\">10.1063/5.0097506</a>"},"publication_identifier":{"issn":["2378-0967"]},"author":[{"full_name":"Thiele, Frederik","first_name":"Frederik","last_name":"Thiele","orcid":"0000-0003-0663-5587","id":"50819"},{"id":"83846","first_name":"Thomas","last_name":"Hummel","full_name":"Hummel, Thomas"},{"last_name":"Protte","first_name":"Maximilian","full_name":"Protte, Maximilian","id":"46170"},{"id":"49683","first_name":"Tim","last_name":"Bartley","full_name":"Bartley, Tim"}],"title":"Opto-electronic bias of a superconducting nanowire single photon detector using a cryogenic photodiode","year":"2022","intvolume":"         7","publication_status":"published","date_updated":"2023-01-12T15:13:40Z","language":[{"iso":"eng"}],"article_number":"081303","doi":"10.1063/5.0097506","issue":"8","publication":"APL Photonics","abstract":[{"lang":"eng","text":"<jats:p> Superconducting Nanowire Single Photon Detectors (SNSPDs) have become an integral part of quantum optics in recent years because of their high performance in single photon detection. We present a method to replace the electrical input by supplying the required bias current via the photocurrent of a photodiode situated on the cold stage of the cryostat. Light is guided to the bias photodiode through an optical fiber, which enables a lower thermal conduction and galvanic isolation between room temperature and the cold stage. We show that an off-the-shelf InGaAs–InP photodiode exhibits a responsivity of at least 0.55 A/W at 0.8 K. Using this device to bias an SNSPD, we characterize the count rate dependent on the optical power incident on the photodiode. This configuration of the SNSPD and photodiode shows an expected plateau in the single photon count rate with an optical bias power on the photodiode above 6.8 µW. Furthermore, we compare the same detector under both optical and electrical bias, and show there is no significant changes in performance. This has the advantage of avoiding an electrical input cable, which reduces the latent heat load by a factor of 100 and, in principle, allows for low loss RF current supply at the cold stage. </jats:p>"}],"date_created":"2022-10-11T07:15:09Z","department":[{"_id":"15"},{"_id":"230"},{"_id":"623"}],"keyword":["Computer Networks and Communications","Atomic and Molecular Physics","and Optics"],"type":"journal_article"},{"date_created":"2023-04-16T01:31:32Z","department":[{"_id":"293"},{"_id":"35"},{"_id":"15"},{"_id":"170"},{"_id":"230"},{"_id":"35"},{"_id":"482"},{"_id":"706"},{"_id":"288"}],"type":"conference","publication":"Conference on Lasers and Electro-Optics: Applications and Technology","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."}],"language":[{"iso":"eng"}],"main_file_link":[{"url":"https://opg.optica.org/abstract.cfm?uri=CLEO_AT-2022-JTu3A.17"}],"doi":"10.1364/CLEO_AT.2022.JTu3A.17","publication_identifier":{"isbn":["978-1-957171-05-0"]},"author":[{"full_name":"Meier, Torsten","first_name":"Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","id":"344"},{"full_name":"Hoepker, Jan Philipp","last_name":"Hoepker","first_name":"Jan Philipp"},{"id":"46170","full_name":"Protte, Maximilian","last_name":"Protte","first_name":"Maximilian"},{"id":"13244","first_name":"Christof","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","full_name":"Eigner, Christof"},{"last_name":"Silberhorn","first_name":"Christine","full_name":"Silberhorn, Christine","id":"26263"},{"full_name":"Sharapova, Polina R.","last_name":"Sharapova","first_name":"Polina R.","id":"60286"},{"id":"75127","full_name":"Sperling, Jan","last_name":"Sperling","first_name":"Jan","orcid":"0000-0002-5844-3205"},{"id":"49683","full_name":"Bartley, Tim","last_name":"Bartley","first_name":"Tim"}],"year":"2022","title":"Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity","date_updated":"2023-04-21T11:10:06Z","publication_status":"published","citation":{"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 <i>Conference on Lasers and Electro-Optics: Applications and Technology</i>, JTu3A. 17. Optica Publishing Group, 2022. <a href=\"https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17\">https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17</a>.","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.","apa":"Meier, T., Hoepker, J. P., Protte, M., Eigner, C., Silberhorn, C., Sharapova, P. R., Sperling, J., &#38; Bartley, T. (2022). Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity. <i>Conference on Lasers and Electro-Optics: Applications and Technology</i>, JTu3A. 17. <a href=\"https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17\">https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17</a>","ieee":"T. Meier <i>et al.</i>, “Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity,” in <i>Conference on Lasers and Electro-Optics: Applications and Technology</i>, San Jose, California United States, 2022, p. JTu3A. 17, doi: <a href=\"https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17\">10.1364/CLEO_AT.2022.JTu3A.17</a>.","ama":"Meier T, Hoepker JP, Protte M, et al. Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity. In: <i>Conference on Lasers and Electro-Optics: Applications and Technology</i>. Optica Publishing Group; 2022:JTu3A. 17. doi:<a href=\"https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17\">10.1364/CLEO_AT.2022.JTu3A.17</a>","bibtex":"@inproceedings{Meier_Hoepker_Protte_Eigner_Silberhorn_Sharapova_Sperling_Bartley_2022, title={Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity}, DOI={<a href=\"https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17\">10.1364/CLEO_AT.2022.JTu3A.17</a>}, 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} }","mla":"Meier, Torsten, et al. “Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity.” <i>Conference on Lasers and Electro-Optics: Applications and Technology</i>, Optica Publishing Group, 2022, p. JTu3A. 17, doi:<a href=\"https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17\">10.1364/CLEO_AT.2022.JTu3A.17</a>."},"_id":"43744","publisher":"Optica Publishing Group","page":"JTu3A. 17","user_id":"16199","conference":{"name":"CLEO: Applications and Technology 2022","start_date":"2022-05-15","location":"San Jose, California United States","end_date":"2022-05-20"},"status":"public"},{"status":"public","has_accepted_license":"1","page":"105401","_id":"33965","publisher":"American Physical Society","ddc":["530"],"user_id":"171","volume":6,"file_date_updated":"2022-10-31T15:05:24Z","citation":{"chicago":"Bocchini, Adriana, Uwe Gerstmann, Tim Bartley, Hans-Georg Steinrück, Gerald Henkel, and Wolf Gero Schmidt. “Electrochemical Performance of KTiOAsO_4 (KTA) in Potassium-Ion Batteries from Density-Functional Theory.” <i>Phys. Rev. Materials</i> 6 (2022): 105401. <a href=\"https://doi.org/10.1103/PhysRevMaterials.6.105401\">https://doi.org/10.1103/PhysRevMaterials.6.105401</a>.","short":"A. Bocchini, U. Gerstmann, T. Bartley, H.-G. Steinrück, G. Henkel, W.G. Schmidt, Phys. Rev. Materials 6 (2022) 105401.","ieee":"A. Bocchini, U. Gerstmann, T. Bartley, H.-G. Steinrück, G. Henkel, and W. G. Schmidt, “Electrochemical performance of KTiOAsO_4 (KTA) in potassium-ion batteries from density-functional theory,” <i>Phys. Rev. Materials</i>, vol. 6, p. 105401, 2022, doi: <a href=\"https://doi.org/10.1103/PhysRevMaterials.6.105401\">10.1103/PhysRevMaterials.6.105401</a>.","apa":"Bocchini, A., Gerstmann, U., Bartley, T., Steinrück, H.-G., Henkel, G., &#38; Schmidt, W. G. (2022). Electrochemical performance of KTiOAsO_4 (KTA) in potassium-ion batteries from density-functional theory. <i>Phys. Rev. Materials</i>, <i>6</i>, 105401. <a href=\"https://doi.org/10.1103/PhysRevMaterials.6.105401\">https://doi.org/10.1103/PhysRevMaterials.6.105401</a>","bibtex":"@article{Bocchini_Gerstmann_Bartley_Steinrück_Henkel_Schmidt_2022, title={Electrochemical performance of KTiOAsO_4 (KTA) in potassium-ion batteries from density-functional theory}, volume={6}, DOI={<a href=\"https://doi.org/10.1103/PhysRevMaterials.6.105401\">10.1103/PhysRevMaterials.6.105401</a>}, journal={Phys. Rev. Materials}, publisher={American Physical Society}, author={Bocchini, Adriana and Gerstmann, Uwe and Bartley, Tim and Steinrück, Hans-Georg and Henkel, Gerald and Schmidt, Wolf Gero}, year={2022}, pages={105401} }","ama":"Bocchini A, Gerstmann U, Bartley T, Steinrück H-G, Henkel G, Schmidt WG. 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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. 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Bartley, Superconductor Science and Technology (2021).","chicago":"Schapeler, Timon, Jan Philipp Höpker, and Tim Bartley. “Quantum Detector Tomography of a High Dynamic-Range Superconducting Nanowire Single-Photon Detector.” <i>Superconductor Science and Technology</i>, 2021. <a href=\"https://doi.org/10.1088/1361-6668/abee9a\">https://doi.org/10.1088/1361-6668/abee9a</a>.","mla":"Schapeler, Timon, et al. “Quantum Detector Tomography of a High Dynamic-Range Superconducting Nanowire Single-Photon Detector.” <i>Superconductor Science and Technology</i>, 064002, 2021, doi:<a href=\"https://doi.org/10.1088/1361-6668/abee9a\">10.1088/1361-6668/abee9a</a>.","ama":"Schapeler T, Höpker JP, Bartley T. Quantum detector tomography of a high dynamic-range superconducting nanowire single-photon detector. <i>Superconductor Science and Technology</i>. Published online 2021. doi:<a href=\"https://doi.org/10.1088/1361-6668/abee9a\">10.1088/1361-6668/abee9a</a>","bibtex":"@article{Schapeler_Höpker_Bartley_2021, title={Quantum detector tomography of a high dynamic-range superconducting nanowire single-photon detector}, DOI={<a href=\"https://doi.org/10.1088/1361-6668/abee9a\">10.1088/1361-6668/abee9a</a>}, number={064002}, journal={Superconductor Science and Technology}, author={Schapeler, Timon and Höpker, Jan Philipp and Bartley, Tim}, year={2021} }"},"project":[{"name":"ISOQC: Quantenkommunikation mit integrierter Optik im Zusammenhang mit supraleitender Elektronik","_id":"209"}],"date_created":"2021-09-03T08:03:34Z","type":"journal_article","department":[{"_id":"15"},{"_id":"230"}]},{"_id":"20157","language":[{"iso":"eng"}],"article_number":"28961","user_id":"49683","doi":"10.1364/oe.399818","publication_identifier":{"issn":["1094-4087"]},"author":[{"id":"50819","full_name":"Thiele, Frederik","orcid":"0000-0003-0663-5587","first_name":"Frederik","last_name":"Thiele"},{"last_name":"vom Bruch","first_name":"Felix","full_name":"vom Bruch, Felix","id":"71245"},{"full_name":"Quiring, Victor","last_name":"Quiring","first_name":"Victor"},{"first_name":"Raimund","last_name":"Ricken","full_name":"Ricken, Raimund"},{"last_name":"Herrmann","first_name":"Harald","full_name":"Herrmann, Harald","id":"216"},{"first_name":"Christof","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","full_name":"Eigner, Christof","id":"13244"},{"id":"26263","last_name":"Silberhorn","first_name":"Christine","full_name":"Silberhorn, Christine"},{"first_name":"Tim","last_name":"Bartley","full_name":"Bartley, Tim","id":"49683"}],"title":"Cryogenic electro-optic polarisation conversion in titanium in-diffused lithium niobate waveguides","status":"public","year":"2020","publication_status":"published","date_updated":"2022-10-25T07:40:20Z","date_created":"2020-10-21T11:03:11Z","department":[{"_id":"15"}],"type":"journal_article","citation":{"apa":"Thiele, F., vom Bruch, F., Quiring, V., Ricken, R., Herrmann, H., Eigner, C., Silberhorn, C., &#38; Bartley, T. (2020). Cryogenic electro-optic polarisation conversion in titanium in-diffused lithium niobate waveguides. <i>Optics Express</i>, Article 28961. <a href=\"https://doi.org/10.1364/oe.399818\">https://doi.org/10.1364/oe.399818</a>","ieee":"F. Thiele <i>et al.</i>, “Cryogenic electro-optic polarisation conversion in titanium in-diffused lithium niobate waveguides,” <i>Optics Express</i>, Art. no. 28961, 2020, doi: <a href=\"https://doi.org/10.1364/oe.399818\">10.1364/oe.399818</a>.","chicago":"Thiele, Frederik, Felix vom Bruch, Victor Quiring, Raimund Ricken, Harald Herrmann, Christof Eigner, Christine Silberhorn, and Tim Bartley. “Cryogenic Electro-Optic Polarisation Conversion in Titanium in-Diffused Lithium Niobate Waveguides.” <i>Optics Express</i>, 2020. <a href=\"https://doi.org/10.1364/oe.399818\">https://doi.org/10.1364/oe.399818</a>.","short":"F. Thiele, F. vom Bruch, V. Quiring, R. Ricken, H. Herrmann, C. Eigner, C. Silberhorn, T. Bartley, Optics Express (2020).","mla":"Thiele, Frederik, et al. “Cryogenic Electro-Optic Polarisation Conversion in Titanium in-Diffused Lithium Niobate Waveguides.” <i>Optics Express</i>, 28961, 2020, doi:<a href=\"https://doi.org/10.1364/oe.399818\">10.1364/oe.399818</a>.","ama":"Thiele F, vom Bruch F, Quiring V, et al. Cryogenic electro-optic polarisation conversion in titanium in-diffused lithium niobate waveguides. <i>Optics Express</i>. Published online 2020. doi:<a href=\"https://doi.org/10.1364/oe.399818\">10.1364/oe.399818</a>","bibtex":"@article{Thiele_vom Bruch_Quiring_Ricken_Herrmann_Eigner_Silberhorn_Bartley_2020, title={Cryogenic electro-optic polarisation conversion in titanium in-diffused lithium niobate waveguides}, DOI={<a href=\"https://doi.org/10.1364/oe.399818\">10.1364/oe.399818</a>}, number={28961}, journal={Optics Express}, author={Thiele, Frederik and vom Bruch, Felix and Quiring, Victor and Ricken, Raimund and Herrmann, Harald and Eigner, Christof and Silberhorn, Christine and Bartley, Tim}, year={2020} }"},"publication":"Optics Express"},{"file_date_updated":"2021-04-22T15:58:52Z","citation":{"bibtex":"@inproceedings{Protte_Ebers_Hammer_Höpker_Albert_Quiring_Meier_Förstner_Silberhorn_Bartley_2020, title={Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics}, DOI={<a href=\"https://doi.org/10.1364/quantum.2020.qth7a.8\">10.1364/quantum.2020.qth7a.8</a>}, number={QTh7A.8}, booktitle={OSA Quantum 2.0 Conference}, author={Protte, Maximilian and Ebers, Lena and Hammer, Manfred and Höpker, Jan Philipp and Albert, Maximilian and Quiring, Viktor and Meier, Cedrik and Förstner, Jens and Silberhorn, Christine and Bartley, Tim}, year={2020} }","ama":"Protte M, Ebers L, Hammer M, et al. Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics. In: <i>OSA Quantum 2.0 Conference</i>. ; 2020. doi:<a href=\"https://doi.org/10.1364/quantum.2020.qth7a.8\">10.1364/quantum.2020.qth7a.8</a>","mla":"Protte, Maximilian, et al. “Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics.” <i>OSA Quantum 2.0 Conference</i>, QTh7A.8, 2020, doi:<a href=\"https://doi.org/10.1364/quantum.2020.qth7a.8\">10.1364/quantum.2020.qth7a.8</a>.","short":"M. Protte, L. Ebers, M. Hammer, J.P. Höpker, M. Albert, V. Quiring, C. Meier, J. Förstner, C. Silberhorn, T. Bartley, in: OSA Quantum 2.0 Conference, 2020.","chicago":"Protte, Maximilian, Lena Ebers, Manfred Hammer, Jan Philipp Höpker, Maximilian Albert, Viktor Quiring, Cedrik Meier, Jens Förstner, Christine Silberhorn, and Tim Bartley. “Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics.” In <i>OSA Quantum 2.0 Conference</i>, 2020. <a href=\"https://doi.org/10.1364/quantum.2020.qth7a.8\">https://doi.org/10.1364/quantum.2020.qth7a.8</a>.","ieee":"M. Protte <i>et al.</i>, “Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics,” 2020, doi: <a href=\"https://doi.org/10.1364/quantum.2020.qth7a.8\">10.1364/quantum.2020.qth7a.8</a>.","apa":"Protte, M., Ebers, L., Hammer, M., Höpker, J. P., Albert, M., Quiring, V., Meier, C., Förstner, J., Silberhorn, C., &#38; Bartley, T. (2020). Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics. <i>OSA Quantum 2.0 Conference</i>, Article QTh7A.8. <a href=\"https://doi.org/10.1364/quantum.2020.qth7a.8\">https://doi.org/10.1364/quantum.2020.qth7a.8</a>"},"status":"public","has_accepted_license":"1","_id":"21719","ddc":["530"],"user_id":"49683","publication":"OSA Quantum 2.0 Conference","abstract":[{"lang":"eng","text":"We fabricate silicon tapers to increase the mode overlap of superconducting detectors on Ti:LiNbO3 waveguides. Mode images show a reduction in mode size from 6 µm to 2 µm FWHM, agreeing with beam propagation simulations."}],"file":[{"creator":"fossie","date_created":"2021-04-22T15:58:52Z","date_updated":"2021-04-22T15:58:52Z","relation":"main_file","access_level":"closed","file_size":1704199,"file_name":"Quantum2.0-Towards SSC hybrid integration for quantum photonics[4936].pdf","content_type":"application/pdf","success":1,"file_id":"21720"}],"date_created":"2021-04-22T15:56:45Z","keyword":["tet_topic_waveguide"],"type":"conference","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"},{"_id":"15"}],"year":"2020","title":"Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics","publication_identifier":{"isbn":["9781943580811"]},"author":[{"full_name":"Protte, Maximilian","last_name":"Protte","first_name":"Maximilian","id":"46170"},{"id":"40428","full_name":"Ebers, Lena","last_name":"Ebers","first_name":"Lena"},{"first_name":"Manfred","orcid":"0000-0002-6331-9348","last_name":"Hammer","full_name":"Hammer, Manfred","id":"48077"},{"first_name":"Jan Philipp","last_name":"Höpker","full_name":"Höpker, Jan Philipp","id":"33913"},{"full_name":"Albert, Maximilian","first_name":"Maximilian","last_name":"Albert"},{"full_name":"Quiring, Viktor","first_name":"Viktor","last_name":"Quiring"},{"id":"20798","first_name":"Cedrik","last_name":"Meier","orcid":"https://orcid.org/0000-0002-3787-3572","full_name":"Meier, Cedrik"},{"id":"158","full_name":"Förstner, Jens","last_name":"Förstner","first_name":"Jens","orcid":"0000-0001-7059-9862"},{"id":"26263","last_name":"Silberhorn","first_name":"Christine","full_name":"Silberhorn, Christine"},{"id":"49683","first_name":"Tim","last_name":"Bartley","full_name":"Bartley, Tim"}],"date_updated":"2022-10-25T07:41:15Z","publication_status":"published","article_number":"QTh7A.8","language":[{"iso":"eng"}],"doi":"10.1364/quantum.2020.qth7a.8"},{"type":"journal_article","keyword":["Atomic and Molecular Physics","and Optics"],"department":[{"_id":"288"},{"_id":"15"},{"_id":"623"},{"_id":"230"}],"date_created":"2023-01-22T17:13:35Z","abstract":[{"lang":"eng","text":"<jats:p>We present a time-over-threshold readout technique to count the number of activated pixels from an array of superconducting nanowire single photon detectors (SNSPDs). This technique places no additional heatload on the cryostat, and retains the intrinsic count rate of the time-tagger. We demonstrate proof-of-principle operation with respect to a four-pixel device. Furthermore, we show that, given some permissible error threshold, the number of pixels that can be reliably read out scales linearly with the intrinsic signal-to-noise ratio of the individual pixel response.</jats:p>"}],"issue":"4","publication":"Optics Express","doi":"10.1364/oe.383111","article_number":"5528","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2025-12-18T17:10:24Z","intvolume":"        28","year":"2020","title":"Single-channel electronic readout of a multipixel superconducting nanowire single photon detector","publication_identifier":{"issn":["1094-4087"]},"author":[{"full_name":"Tiedau, Johannes","first_name":"Johannes","last_name":"Tiedau"},{"id":"55629","first_name":"Timon","last_name":"Schapeler","orcid":"0000-0001-7652-1716","full_name":"Schapeler, Timon"},{"full_name":"Anant, Vikas","first_name":"Vikas","last_name":"Anant"},{"last_name":"Fedder","first_name":"Helmut","full_name":"Fedder, Helmut"},{"id":"26263","last_name":"Silberhorn","first_name":"Christine","full_name":"Silberhorn, Christine"},{"first_name":"Tim","last_name":"Bartley","full_name":"Bartley, Tim","id":"49683"}],"project":[{"name":"PhoG: Sub-Poissonian Photon Gun by Coherent Diffusive Photonics - EU Flagship Project","_id":"237"},{"name":"ISOQC: Quantenkommunikation mit integrierter Optik im Zusammenhang mit supraleitender Elektronik","_id":"209"}],"citation":{"chicago":"Tiedau, Johannes, Timon Schapeler, Vikas Anant, Helmut Fedder, Christine Silberhorn, and Tim Bartley. “Single-Channel Electronic Readout of a Multipixel Superconducting Nanowire Single Photon Detector.” <i>Optics Express</i> 28, no. 4 (2020). <a href=\"https://doi.org/10.1364/oe.383111\">https://doi.org/10.1364/oe.383111</a>.","short":"J. Tiedau, T. Schapeler, V. Anant, H. Fedder, C. Silberhorn, T. Bartley, Optics Express 28 (2020).","apa":"Tiedau, J., Schapeler, T., Anant, V., Fedder, H., Silberhorn, C., &#38; Bartley, T. (2020). Single-channel electronic readout of a multipixel superconducting nanowire single photon detector. <i>Optics Express</i>, <i>28</i>(4), Article 5528. <a href=\"https://doi.org/10.1364/oe.383111\">https://doi.org/10.1364/oe.383111</a>","ieee":"J. Tiedau, T. Schapeler, V. Anant, H. Fedder, C. Silberhorn, and T. Bartley, “Single-channel electronic readout of a multipixel superconducting nanowire single photon detector,” <i>Optics Express</i>, vol. 28, no. 4, Art. no. 5528, 2020, doi: <a href=\"https://doi.org/10.1364/oe.383111\">10.1364/oe.383111</a>.","ama":"Tiedau J, Schapeler T, Anant V, Fedder H, Silberhorn C, Bartley T. 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Quantum detector tomography of a 2×2 multi-pixel array of superconducting nanowire single photon detectors. <i>Optics Express</i>. Published online 2020. doi:<a href=\"https://doi.org/10.1364/oe.404285\">10.1364/oe.404285</a>","bibtex":"@article{Schapeler_Höpker_Bartley_2020, title={Quantum detector tomography of a 2×2 multi-pixel array of superconducting nanowire single photon detectors}, DOI={<a href=\"https://doi.org/10.1364/oe.404285\">10.1364/oe.404285</a>}, number={33035}, journal={Optics Express}, author={Schapeler, Timon and Höpker, Jan Philipp and Bartley, Tim}, year={2020} }","apa":"Schapeler, T., Höpker, J. P., &#38; Bartley, T. (2020). Quantum detector tomography of a 2×2 multi-pixel array of superconducting nanowire single photon detectors. <i>Optics Express</i>, Article 33035. <a href=\"https://doi.org/10.1364/oe.404285\">https://doi.org/10.1364/oe.404285</a>","ieee":"T. Schapeler, J. P. Höpker, and T. 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Bartley, Optics Express (2020).","chicago":"Schapeler, Timon, Jan Philipp Höpker, and Tim Bartley. “Quantum Detector Tomography of a 2×2 Multi-Pixel Array of Superconducting Nanowire Single Photon Detectors.” <i>Optics Express</i>, 2020. <a href=\"https://doi.org/10.1364/oe.404285\">https://doi.org/10.1364/oe.404285</a>."},"project":[{"_id":"209","name":"ISOQC: Quantenkommunikation mit integrierter Optik im Zusammenhang mit supraleitender Elektronik"}]},{"date_created":"2019-05-07T09:18:12Z","department":[{"_id":"15"},{"_id":"288"}],"type":"conference","citation":{"bibtex":"@inproceedings{Meyer-Scott_Prasannan_Montaut_Tiedau_Eigner_Harder_Sansoni_Nitsche_Herrmann_Ricken_et al._2019, title={Engineering integrated photon pair sources and multiplexed detectors (Conference Presentation)}, DOI={<a href=\"https://doi.org/10.1117/12.2513753\">10.1117/12.2513753</a>}, booktitle={Advances in Photonics of Quantum Computing, Memory, and Communication XII}, author={Meyer-Scott, Evan and Prasannan, Nidhin and Montaut, Nicola and Tiedau, Johannes and Eigner, Christof and Harder, Georg and Sansoni, Linda and Nitsche, Thomas and Herrmann, Harald and Ricken, Raimund and et al.}, editor={Hasan, Zameer U. and Hemmer, Philip R. and Migdall, Alan L.}, year={2019} }","chicago":"Meyer-Scott, Evan, Nidhin Prasannan, Nicola Montaut, Johannes Tiedau, Christof Eigner, Georg Harder, Linda Sansoni, et al. “Engineering Integrated Photon Pair Sources and Multiplexed Detectors (Conference Presentation).” In <i>Advances in Photonics of Quantum Computing, Memory, and Communication XII</i>, edited by Zameer U. 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