O
O. Okunev
Researcher at Moscow State Pedagogical University
Publications - 41
Citations - 2465
O. Okunev is an academic researcher from Moscow State Pedagogical University. The author has contributed to research in topics: Quantum efficiency & Photon counting. The author has an hindex of 15, co-authored 41 publications receiving 2322 citations. Previous affiliations of O. Okunev 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
Noninvasive CMOS circuit testing with NbN superconducting single-photon detectors
Jie Zhang,N. Boiadjieva,G. M. Chulkova,H. Deslandes,G.N. Gol'tsman,Alexander Korneev,P. Kouminov,M. Leibowitz,W. Lo,R. Malinsky,O. Okunev,Aaron Pearlman,W. Slysz,Konstantin Smirnov,C. Tsao,A. Verevkin,Boris M. Voronov,Kenneth R. Wilsher,Roman Sobolewski +18 more
TL;DR: The 3.5 nm thick-film, meander-structured NbN superconducting single-photon detectors have been implemented in the CMOS circuit testing system based on the detection of near-infrared photon emission from switching transistors and have significantly improved the performance of the system as mentioned in this paper.
Journal ArticleDOI
Ultrafast superconducting single-photon detectors for near-infrared-wavelength quantum communications
A. Verevkin,Aaron Pearlman,W. Slysz,Jie Zhang,Marc Currie,Alexander Korneev,G. M. Chulkova,O. Okunev,P. Kouminov,Konstantin Smirnov,Boris M. Voronov,G. N. Gol'tsman,G. N. Gol'tsman,Roman Sobolewski,Roman Sobolewski +14 more
TL;DR: In this article, Niobium-nitride, superconducting single-photon detectors (SSPDs) are used for ultrafast counting of near-infrared photons for secure quantum communications.