@Article{Korneeva_etal2016,
author="Korneeva, Y.
and Sidorova, M.
and Semenov, A.
and Krasnosvobodtsev, S.
and Mitsen, K.
and Korneev, A.
and Chulkova, G.
and Goltsman, G.",
title="Comparison of hot-spot formation in NbC and NbN single-photon detectors",
journal="IEEE Trans. Appl. Supercond.",
year="2016",
volume="26",
number="3",
pages="1--4",
optkeywords="NbC; NbN SSPD; SNSPD",
abstract="We report an experimental investigation of the hot-spot evolution in superconducting single-photon detectors made of disordered superconducting materials with different diffusivity and energy downconversion time values, i.e., 33-nm-thick NbN and 23-nm-thick NbC films. We have demonstrated that, in NbC film, only 405-nm photons produce sufficiently large hot spot to trigger a single-photon response. The dependence of detection efficiency on bias current for 405-nm photons in NbC is similar to that for 3400-nm photons in NbN. In NbC, large diffusivity and downconversion time result in 1-D critical current suppression profile compared with the usual 2-D profile in NbN.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1348), last updated on Sun, 30 May 2021 22:34:24 -0500",
issn="1051-8223",
doi="10.1109/TASC.2016.2526009",
opturl="http://ieeexplore.ieee.org/document/7403917/",
opturl="https://doi.org/10.1109/TASC.2016.2526009"
}