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Zolotov, P.; Vakhtomin, Yu.; Divochiy, A.; Seleznev, V.; Morozov, P.; Smirnov, K. |
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High-efficiency single-photon detectors based on NbN films |
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Miscellaneous |
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2013 |
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SSPD, SNSPD |
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We present our resent results in development and testing of Superconducting Single-Photon Detectors (SSPD) with detection efficiencies greater than 85%. High values of obtained results are assigned to proposed design of the detector with integrated resonator structure, including two-layer optical cavity and anti-reflective coating (ARC). |
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1254 |
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Author |
Zolotov, P.; Vakhtomin, Yu.; Divochiy, A.; Morozov, P.; Seleznev, V.; Smirnov, K |
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Title |
Development of fast and high-effective single-photon detector for spectrum range up to 2.3 μm |
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Conference Article |
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2017 |
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Proc. SPBOPEN |
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Proc. SPBOPEN |
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439-440 |
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SSPD, SNSPD |
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We present the results of development and testing of the single-photon-counting system operating in the wide spectrum rane up to 2.3 mcm. We managed to increase system detection efficiency up to 60% in the range of 1.7-2.3 mcm optimisation of the fabrication methods of superconducting single-photon detectors and application of the single-mode fiber with enlarged core diameter. |
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St. Petersburg, Russia |
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1255 |
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Sclafani, M.; Marksteiner, M.; Keir, F. M. L.; Divochiy, A.; Korneev, A.; Semenov, A.; Gol'tsman, G.; Arndt, M. |
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Sensitivity of a superconducting nanowire detector for single ions at low energy |
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Journal Article |
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2012 |
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Nanotechnol. |
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Nanotechnol. |
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23 |
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6 |
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065501 (1 to 5) |
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NbN SSPD, SNSPD, superconducting single ion detector, SSID, SNSID |
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We report on the characterization of a superconducting nanowire detector for ions at low kinetic energies. We measure the absolute single-particle detection efficiency eta and trace its increase with energy up to eta = 100%. We discuss the influence of noble gas adsorbates on the cryogenic surface and analyze their relevance for the detection of slow massive particles. We apply a recent model for the hot-spot formation to the incidence of atomic ions at energies between 0.2 and 1 keV. We suggest how the differences observed for photons and atoms or molecules can be related to the surface condition of the detector and we propose that the restoration of proper surface conditions may open a new avenue for SSPD-based optical spectroscopy on molecules and nanoparticles. |
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Vienna Center for Quantum Science and Technology, Faculty of Physics, University of Vienna, Vienna, Austria |
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0957-4484 |
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PMID:22248823 |
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1380 |
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Minaeva, O.; Divochiy, A.; Korneev, A.; Sergienko, A. V.; Goltsman, G. N. |
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High speed infrared photon counting with photon number resolving superconducting single-photon detectors (SSPDs) |
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2009 |
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CLEO/Europe – EQEC |
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CLEO/Europe – EQEC |
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SSPD, SNSPD |
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A review of development and characterization of the nanostructures consisting of several meander sections, all connected in parallel was presented. Such geometry leads to a significant decrease of the kinetic inductance, without a decrease of the SSPD active area. A new type of SSPDs possess the QE of large-active- area devices, but, simultaneously, allows achieving short response times and the GHz-counting rate. This new generation of superconducting detectors has another significant advantage for quantum key distribution, they have a photon number resolving capability and can distinguish more photons. |
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1399 |
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Moshkova, M. A.; Divochiy, A. V.; Morozov, P. V.; Antipov, A. V.; Vakhtomin, Yu. B.; Smirnov, K. V. |
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Title |
Characterization of topologies of superconducting photon number resolving detectors |
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Conference Article |
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2019 |
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Proc. 8th Int. Conf. Photonics and Information Optics |
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Proc. 8th Int. Conf. Photonics and Information Optics |
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465-466 |
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PNR SSPD |
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Comparative analysis for different topologies of superconducting single-photon detectors with ability to resolve up to 4 photons in a short pulse of IR radiation has been carry out. It was developed the detector with a system detection efficiency of ~ 85 % at λ = 1550 nm. The possibility of using such detector to restore photon statistics of a pulsed radiation source was demonstrated. |
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Russian |
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978-5-7262-2536-4 |
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http://fioconf.mephi.ru/files/2018/12/FIO2019-Sbornik.pdf |
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1803 |
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