K
Konstantin Smirnov
Researcher at National Research University – Higher School of Economics
Publications - 126
Citations - 3992
Konstantin Smirnov is an academic researcher from National Research University – Higher School of Economics. The author has contributed to research in topics: Quantum efficiency & Photon. The author has an hindex of 25, co-authored 125 publications receiving 3762 citations. Previous affiliations of Konstantin Smirnov include Moscow State Pedagogical University & Moscow State University.
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
Sensitivity and gigahertz counting performance of NbN superconducting single-photon detectors
Alexander Korneev,P. Kouminov,V. Matvienko,G. M. Chulkova,Konstantin Smirnov,B. M. Voronov,Gregory Goltsman,Marc Currie,William Lo,K. Wilsher,Jie Zhang,W. Slysz,Aaron Pearlman,A. Verevkin,Roman Sobolewski +14 more
TL;DR: In this article, the authors measured the quantum efficiency (QE), GHz counting rate, jitter, and noise-equivalent power (NEP) of nanostructured NbN superconducting single-photon detectors (SSPDs) in the visible to infrared radiation range.
Journal ArticleDOI
Fabrication of nanostructured superconducting single-photon detectors
Gregory Goltsman,Konstantin Smirnov,P. Kouminov,Boris M. Voronov,N. S. Kaurova,V. Drakinsky,Jie Zhang,A. Verevkin,Roman Sobolewski +8 more
TL;DR: In this paper, the hotspot formation arises in an ultrathin and submicrometer-width superconductor stripe and, together with the supercurrent redistribution, leads to the resistive detector response upon absorption of a photon.
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.