TY  - JOUR
AU  - Sobolewski, Roman
AU  - Xu, Ying
AU  - Zheng, Xuemei
AU  - Williams, Carlo
AU  - Zhang, Jin
AU  - Verevkin, Aleksandr
AU  - Chulkova, Galina
AU  - Korneev, Alexander
AU  - Lipatov, Andrey
AU  - Okunev, Oleg
AU  - Smirnov, Konstantin
AU  - Gol'tsman, Gregory N.
PY  - 2002
DA  - 2002//
TI  - Spectral sensitivity of the NbN single-photon superconducting detector
T2  - IEICE Trans. Electron.
JO  - IEICE Trans. Electron.
SP  - 797
EP  - 802
VL  - E85-C
IS  - 3
KW  - NbN SSPD
KW  - SNSPD
AB  - 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.
UR  - https://search.ieice.org/bin/summary.php?id=e85-c_3_797
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1531), last updated on Fri, 21 May 2021 14:33:18 -0500
ID  - Sobolewski_etal2002
ER  -