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A. Lipatov
Researcher at Moscow State Pedagogical University
Publications - 16
Citations - 2093
A. Lipatov is an academic researcher from Moscow State Pedagogical University. The author has contributed to research in topics: Quantum efficiency & Detector. The author has an hindex of 8, co-authored 16 publications receiving 1957 citations. Previous affiliations of A. Lipatov include University of Rochester.
Papers
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Journal ArticleDOI
Picosecond superconducting single-photon optical detector
Gregory Goltsman,O. Okunev,G. M. Chulkova,A. Lipatov,A. D. Semenov,Konstantin Smirnov,B. M. Voronov,A. Dzardanov,C. Williams,Roman Sobolewski +9 more
TL;DR: In this article, a supercurrent-assisted hotspot-formation mechanism for ultrafast detection and counting of visible and infrared photons is presented, where a photon-induced hotspot leads to a temporary formation of a resistive barrier across the superconducting sensor strip and results in an easily measurable voltage pulse.
Journal ArticleDOI
Detection efficiency of large-active-area NbN single-photon superconducting detectors in the ultraviolet to near-infrared range
A. Verevkin,Jie Zhang,Roman Sobolewski,A. Lipatov,O. Okunev,G. M. Chulkova,Alexander Korneev,Konstantin Smirnov,Gregory Goltsman,A. D. Semenov +9 more
TL;DR: In this article, the spectral sensitivity of superconducting NbN thin-film single-photon detectors (SPDs) is investigated and the spectral dependences of the detection efficiency at the 0.4 to 3.0-μm-wavelength range are presented.
Journal ArticleDOI
Fabrication and properties of an ultrafast NbN hot-electron single-photon detector
G.N. Gol'tsman,O. Okunev,G. M. Chulkova,A. Lipatov,A. Dzardanov,Konstantin Smirnov,A. D. Semenov,Boris M. Voronov,C. Williams,Roman Sobolewski +9 more
TL;DR: In this paper, an ultra-high-speed single-photon counter for visible and near-infrared wavebands based on an ultrathin NbN hot-electron photodetector (HEP) was developed.
Journal ArticleDOI
Ultrafast superconducting single-photon optical detectors and their applications
TL;DR: In this paper, the authors presented a new class of ultrafast single-photon detectors for counting both visible and infrared photons, based on photon-induced hotspot formation, which forces the supercurrent redistribution and leads to the appearance of a transient resistive barrier across an ultrathin, submicrometer-width, superconducting stripe.
Journal ArticleDOI
Response time characterization of NbN superconducting single-photon detectors
Jin Zhang,W. Slysz,A. Verevkin,O. Okunev,G. M. Chulkova,Alexander Korneev,A. Lipatov,G.N. Gol'tsman,Roman Sobolewski +8 more
TL;DR: In this article, the authors reported the time-resolved measurements of NbN-based superconducting single-photon detectors with a response signal width of about 150 ps, and the system jitter was measured to be 35 ps.