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| Author | Elezov, M. S.; Ozhegov, R. V.; Goltsman, G. N.; Makarov, V. | ||||
| Title | Development of the experimental setup for investigation of latching of superconducting single-photon detector caused by blinding attack on the quantum key distribution system | Type  |
Conference Article | ||
| Year | 2017 | Publication | EPJ Web of Conferences | Abbreviated Journal | EPJ Web of Conferences |
| Volume | 132 | Issue | 2 | Pages | 2 |
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| Abstract | Recently bright-light control of the SSPD has been demonstrated. This attack employed a “backdoor†in the detector biasing scheme. Under bright-light illumination, SSPD becomes resistive and remains “latched†in the resistive state even when the light is switched off. While the SSPD is latched, Eve can simulate SSPD single-photon response by sending strong light pulses, thus deceiving Bob. We developed the experimental setup for investigation of a dependence on latching threshold of SSPD on optical pulse length and peak power. By knowing latching threshold it is possible to understand essential requirements for development countermeasures against blinding attack on quantum key distribution system with SSPDs. |
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| Notes | Approved | no | |||
| Call Number | RPLAB @ kovalyuk @ | Serial | 1116 | ||
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| Author | Fedder, H.; Oesterwind, S.; Wick, M.; Olbrich, F.; Michler, P.; Veigel, T.; Berroth, M.; Schlagmüller, M. | ||||
| Title | Characterization of electro-optical devices with low jitter single photon detectors – towards an optical sampling oscilloscope beyond 100 GHz | Type |
Conference Article | ||
| Year | 2018 | Publication | ECOC | Abbreviated Journal | |
| Volume | Issue | Pages | 1-3 | ||
| Keywords | SSPD, SNSPD, SPAD | ||||
| Abstract | We showcase an optical random sampling scope that exploits single photon counting and apply it to characterize optical transceivers. We study single photon detectors with a jitter down to 40 ps. The method can be extended beyond 100 GHz. | ||||
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| Notes | Approved | no | |||
| Call Number | 8535415 | Serial | 1198 | ||
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| Author | Kuzin, Aleksei; Elmanov, Ilia; Kovalyuk, Vadim; An, Pavel; Goltsman, Gregory | ||||
| Title | Silicon nitride focusing grating coupler for input and output light of NV-centers | Type |
Conference Article | ||
| Year | 2020 | Publication | Proc. 32-nd EMSS | Abbreviated Journal | Proc. 32-nd EMSS |
| Volume | Issue | Pages | 349-353 | ||
| Keywords | NV-centers, focusing grating coupler | ||||
| Abstract | Here we presented the numerical results for the calculation of focusing grating coupler efficiency in the visible wavelength range. Using the finite element method, the optimal geometric parameters, including filling factor and grating period for a central wavelength of 637 nm, were found. Obtained results allow to input/output single-photon radiation from NV-centers, and can be used for research and development of a scalable on-chip quantum optical computing. | ||||
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| ISSN | 2724-0029 | ISBN | 978-88-85741-44-7 | Medium | |
| Area | Expedition | Conference | 32nd European Modeling & Simulation Symposium | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1841 | |||
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| Author | Zolotov, P.; Divochiy, A.; Vakhtomin, Y.; Seleznev, V.; Morozov, P.; Smirnov, K. | ||||
| Title | Superconducting single-photon detectors made of ultra-thin VN films | Type |
Conference Article | ||
| Year | 2018 | Publication | KnE Energy | Abbreviated Journal | KnE Energy |
| Volume | 3 | Issue | 3 | Pages | 83-89 |
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| Abstract | We optimized technology of thin VN films deposition in order to study VN-based superconducting single-photon detectors. Investigation of the main VN film parameters showed that this material has lower resistivity compared to commonly used NbN. Fabricated from obtained films devices showed 100% intrinsic detection efficiency at 900 nm, at the temperature of 1.7 K starting with the bias current of 0.7·I | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1230 | |||
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| Author | Jiang, Ling; Miao, Wei; Zhang, Wen; Li, Ning; Lin, Zhen Hui; Yao, Qi Jun; Shi, Sheng-Cai; Svechnikov, Sergey I.; Vakhtomin, Yury B.; Antipov, Sergey V.; Voronov, Boris M.; Kaurova, Natalia S.; Gol'tsman, Gregory N. | ||||
| Title | Characterization of quasi-optical NbN phonon-cooled superconducting HEB mixers | Type |
Conference Article | ||
| Year | 2006 | Publication | Proc. 17th Int. Symp. Space Terahertz Technol. | Abbreviated Journal | Proc. 17th Int. Symp. Space Terahertz Technol. |
| Volume | Issue | Pages | 55-58 | ||
| Keywords | NbN HEB mixers | ||||
| Abstract | In this paper, we thoroughly investigate the performance of quasi-optical NbN phonon-cooled superconducting hot-electron bolometer (HEB) mixers, cryogenically cooled by a close-cycled 4-K refrigerator at 500 GI-1z and 850 GHz. The uncorrected lowest receiver noise Abstract---In temperatures measured are 800 K at 500 CHz without anti-reflection coating, and 1000 K @ 850 GHz with a 50 11M thick Mylar anti-reflection coating. The dependence of receiver noise temperature on the critical current and bath temperature of HEB mixer is also investigated here. Lifetime of quasi-optical superconducting NbN HEB mixers of different volumes, room temperature resistances, and critical temperatures are thoroughly studied. Increased room temperature resistance with time over the initial resistance changes between 1 and 1.2, and the reduced critical current with time over the initial value fluctuates slightly around 0.7 for most HEB mixers even of different volumes, room temperature resistances, and critical temperatures. The critical current degrades sharply vvhile room temperature resistance varies over 1.25. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1435 | |||
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