TY  - JOUR
AU  - Smirnov, K.
AU  - Divochiy, A.
AU  - Vakhtomin, Y.
AU  - Morozov, P.
AU  - Zolotov, P.
AU  - Antipov, A.
AU  - Seleznev, V.
PY  - 2018
DA  - 2018//
TI  - NbN single-photon detectors with saturated dependence of quantum efficiency
T2  - Supercond. Sci. Technol.
JO  - Supercond. Sci. Technol.
SP  - 035011 (1 to 8)
VL  - 31
IS  - 3
KW  - NbN SSPD
KW  - SNSPD
AB  - The possibility of creating NbN superconducting single-photon detectors with saturated dependence of quantum efficiency (QE) versus normalized bias current was investigated. It was shown that the saturation increases for the detectors based on finer films with a lower value of Rs300/Rs20. The decreasing of Rs300/Rs20 was related to the increasing influence of quantum corrections to conductivity of superconductors and, in turn, to the decrease of the electron diffusion coefficient. The best samples have a constant value of system QE 94% at Ib/Ic ~ 0.8 and wavelength 1310 nm.
SN  - 0953-2048
UR  - https://iopscience.iop.org/article/10.1088/1361-6668/aaa7aa
UR  - https://doi.org/10.1088/1361-6668/aaa7aa
DO  - 10.1088/1361-6668/aaa7aa
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1232), last updated on Sun, 04 Jul 2021 16:33:47 -0500
ID  - Smirnov_etal2018
ER  -