@Article{Baeva_etal2018,
author="Baeva, E. M.
and Sidorova, M. V.
and Korneev, A. A.
and Smirnov, K. V.
and Divochy, A. V.
and Morozov, P. V.
and Zolotov, P. I.
and Vakhtomin, Y. B.
and Semenov, A. V.
and Klapwijk, T. M.
and Khrapai, V. S.
and Goltsman, G. N.",
title="Thermal properties of NbN single-photon detectors",
journal="Phys. Rev. Applied",
year="2018",
volume="10",
number="6",
pages="064063 (1 to 8)",
optkeywords="NbN SSPD; SNSPD",
abstract="We investigate thermal properties of a NbN single-photon detector capable of unit internal detection efficiency. Using an independent calibration of the coupling losses, we determine the absolute optical power absorbed by the NbN film and, via resistive superconductor thermometry, the temperature dependence of the thermal resistance Z(T) of the NbN film. In principle, this approach permits simultaneous measurement of the electron-phonon and phonon-escape contributions to the energy relaxation, which in our case is ambiguous because of the similar temperature dependencies. We analyze Z(T) with a two-temperature model and impose an upper bound on the ratio of electron and phonon heat capacities in NbN, which is surprisingly close to a recent theoretical lower bound for the same quantity in similar devices.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1226), last updated on Sat, 08 May 2021 23:46:01 -0500",
issn="2331-7019",
doi="10.1103/PhysRevApplied.10.064063",
opturl="https://link.aps.org/doi/10.1103/PhysRevApplied.10.064063",
opturl="https://doi.org/10.1103/PhysRevApplied.10.064063"
}