@InProceedings{Korneev_etal2007,
author="Korneev, A.
and Minaeva, O.
and Divochiy, A.
and Antipov, A.
and Kaurova, N.
and Seleznev, V.
and Voronov, B.
and Gol{\textquoteright}tsman, G.
and Pan, D.
and Kitaygorsky, J.
and Slysz, W.
and Sobolewski, R.",
editor="Dusek, M.
and Hillery, M. S.
and Schleich, W. P.
and Prochazka, I.
and Migdall, A. L.
and Pauchard, A.",
title="Ultrafast and high quantum efficiency large-area superconducting single-photon detectors",
booktitle="Proc. SPIE",
year="2007",
publisher="Spie",
volume="6583",
pages="65830I (1 to 9)",
optkeywords="SSPD; SNSPD; superconducting NbN films; infrared single-photon detectors",
abstract="We present our latest generation of superconducting single-photon detectors (SSPDs) patterned from 4-nm-thick NbN films, as meander-shaped ~0.5-mm-long and ~100-nm-wide stripes. The SSPDs exhibit excellent performance parameters in the visible-to-near-infrared radiation wavelengths: quantum efficiency (QE) of our best devices approaches a saturation level of ~30{\%} even at 4.2 K (limited by the NbN film optical absorption) and dark counts as low as 2x10$^{-4}$ Hz. The presented SSPDs were designed to maintain the QE of large-active-area devices, but, unless our earlier SSPDs, hampered by a significant kinetic inductance and a nanosecond response time, they are characterized by a low inductance and GHz counting rates. We have designed, simulated, and tested the structures consisting of several, connected in parallel, meander sections, each having a resistor connected in series. Such new, multi-element geometry led to a significant decrease of the device kinetic inductance without the decrease of its active area and QE. The presented improvement in the SSPD performance makes our detectors most attractive for high-speed quantum communications and quantum cryptography applications.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1249), last updated on Sun, 16 May 2021 15:29:29 -0500",
doi="10.1117/12.723684",
opturl="https://doi.org/10.1117/12.723684"
}