@InProceedings{Zolotov_etal2018,
author="Zolotov, P.
and Divochiy, A.
and Vakhtomin, Y.
and Moshkova, M.
and Morozov, P.
and Seleznev, V.
and Smirnov, K.",
title="Photon-number-resolving SSPDs with system detection efficiency over 50{\%} at telecom range",
booktitle="Proc. AIP Conf.",
year="2018",
volume="1936",
number="1",
pages="020019",
optkeywords="NbN PNR SSPD; SNSPD",
abstract="We used technology of making high-efficiency superconducting single-photon detectors as a basis for improvement of photon-number-resolving devices. By adding optical cavity and using an improved NbN superconducting film, we enhanced previously reported system detection efficiency at telecom range for such detectors. Our results show that implementation of optical cavity helps to develop four-section device with quantum efficiency over 50{\%} at 1.55 {\textmu}m. Performed experimental studies of detecting multi-photon optical pulses showed irregularities over defining multi-photon through single-photon quantum efficiency.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1231), last updated on Mon, 03 May 2021 23:27:34 -0500",
doi="10.1063/1.5025457",
opturl="https://aip.scitation.org/doi/abs/10.1063/1.5025457",
opturl="https://doi.org/10.1063/1.5025457"
}