@Article{Goltsman_etal2005,
author="Gol{\textquoteright}tsman, G. N.
and Korneev, A.
and Rubtsova, I.
and Milostnaya, I.
and Chulkova, G.
and Minaeva, O.
and Smirnov, K.
and Voronov, B.
and S{\l}ysz, W.
and Pearlman, A.
and Verevkin, A.
and Sobolewski, R.",
title="Ultrafast superconducting single-photon detectors for near-infrared-wavelength quantum communications",
journal="Phys. Stat. Sol. (C)",
year="2005",
volume="2",
number="5",
pages="1480--1488",
optkeywords="NbN SSPD; SNSPD",
abstract="We present our progress on the research and development of NbN superconducting single-photon detectors (SSPD{\textquoteright}s) for ultrafast counting of near-infrared photons for secure quantum communications. Our SSPD{\textquoteright}s operate in the quantum detection mode based on the photon-induced hotspot formation and subsequent development of a transient resistive barrier across an ultrathin and submicron-width superconducting stripe. The devices are fabricated from 4-nm-thick NbN films and kept in the 4.2- to 2-K temperature range. The detector experimental quantum efficiency in the photon-counting mode reaches above 40{\%} for the visible light and up to 30{\%} in the 1.3- to 1.55-{\textmu}m wavelength range with dark counts below 0.01 per second. The experimental real-time counting rate is above 2 GHz and is limited by our readout electronics. The SSPD{\textquoteright}s timing jitter is below 18 ps, and the best-measured value of the noise-equivalent power (NEP) is 5 {\texttimes} 10--21 W/Hz1/2 at 1.3 {\textmu}m. In terms of quantum efficiency, timing jitter, and maximum counting rate, our NbN SSPD{\textquoteright}s significantly outperform semiconductor avalanche photodiodes and photomultipliers in the 1.3- to 1.55-{\textmu}m range.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1479), last updated on Mon, 17 May 2021 22:16:07 -0500",
issn="1610-1634",
doi="10.1002/pssc.200460829",
opturl="http://doi.wiley.com/10.1002/pssc.200460829",
opturl="https://doi.org/10.1002/pssc.200460829"
}