@InProceedings{Goltsman_etal2007,
author="Gol{\textquoteright}tsman, G.
and Korneev, A.
and Tarkhov, M.
and Seleznev, V.
and Divochiy, A.
and Minaeva, O.
and Kaurova, N.
and Voronov, B.
and Okunev, O.
and Chulkova, G.
and Milostnaya, I.
and Smirnov, K.",
title="Middle-infrared ultrafast superconducting single photon detector",
booktitle="32nd IRMW / 15th ICTE",
year="2007",
pages="115--116",
optkeywords="SSPD; SNSPD",
abstract="We present the results of the research on quantum efficiency of the ultrathin-film superconducting single-photon detectors (SSPD) in the wavelength rage from 1 mum to 5.7 mum. Reduction of operation temperature to 1.6 K allowed us to measure quantum efficiency of {\textasciitilde}1 {\%} at 5.7 mum wavelength with the SSPD made from 4-nm-thick NbN film. In a pursuit of further performance improvement we endeavored SSPD fabricating from 4-nm-thick MoRe film as an alternative material. The MoRe film exhibited transition temperature of 7.7K, critical current density at 4.2 K temperature was 1.1times10 6 A/cm 2 , and diffusivity 1.73 cmVs. The single-photon response was observed with MoRe SSPD at 1.3 mum wavelength with quantum efficiency estimated to be 0.04{\%}.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1246), last updated on Sun, 16 May 2021 12:41:02 -0500",
doi="10.1109/ICIMW.2007.4516419",
opturl="https://doi.org/10.1109/ICIMW.2007.4516419"
}