%0 Journal Article
%T Spectral sensitivity of the NbN single-photon superconducting detector
%A Sobolewski, Roman
%A Xu, Ying
%A Zheng, Xuemei
%A Williams, Carlo
%A Zhang, Jin
%A Verevkin, Aleksandr
%A Chulkova, Galina
%A Korneev, Alexander
%A Lipatov, Andrey
%A Okunev, Oleg
%A Smirnov, Konstantin
%A Gol'tsman, Gregory N.
%J IEICE Trans. Electron.
%D 2002
%V E85-C
%N 3
%F Sobolewski_etal2002
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1531), last updated on Fri, 21 May 2021 14:33:18 -0500
%X We report our studies on the spectral sensitivity of superconducting NbN thin-film single-photon detectors (SPD's) capable of GHz counting rates of visible and near-infrared photons. In particular, it has been shown that a NbN SPD is sensitive to 1.55-µm wavelength radiation and can be used for quantum communication. Our SPD's exhibit experimentally measured intrinsic quantum efficiencies from 20% at 800 nm up to 1% at 1.55-µm wavelength. The devices demonstrate picosecond response time (<100 ps, limited by our readout system) and negligibly low dark counts. Spectral dependencies of photon counting of continuous-wave, 0.4-µm to 3.5-µm radiation, and 0.63-µm, 1.33-µm, and 1.55-µm laser-pulsed radiations are presented for the single-stripe-type and meander-type devices.
%K NbN SSPD
%K SNSPD
%U https://search.ieice.org/bin/summary.php?id=e85-c_3_797
%P 797-802