@Article{Korneev_etal2005,
author="Korneev, A.
and Matvienko, V.
and Minaeva, O.
and Milostnaya, I.
and Rubtsova, I.
and Chulkova, G.
and Smirnov, K.
and Voronov, V.
and Gol{\textquoteright}tsman, G.
and Slysz, W.
and Pearlman, A.
and Verevkin, A.
and Sobolewski, R.",
title="Quantum efficiency and noise equivalent power of nanostructured, NbN, single-photon detectors in the wavelength range from visible to infrared",
journal="IEEE Trans. Appl. Supercond.",
year="2005",
volume="15",
number="2",
pages="571--574",
optkeywords="NbN SSPD; SNSPD; QE; NEP",
abstract="We present our studies on the quantum efficiency (QE) and the noise equivalent power (NEP) of the latest-generation, nanostructured, superconducting, single-photon detectors (SSPDs) in the wavelength range from 0.5 to 5.6 /spl mu/m, operated at temperatures in the 2.0- to 4.2-K range. Our detectors are designed as 4-nm-thick and 100-nm-wide NbN meander-shaped stripes, patterned by electron-beam lithography and cover a 10/spl times/10-/spl mu/m/sup 2/ active area. The best-achieved QE at 2.0 K for 1.55-/spl mu/m photons is 17{\%}, and QE for 1.3-/spl mu/m infrared photons reaches its saturation value of /spl sim/30{\%}. The SSPD NEP at 2.0 K is as low as 5/spl times/10/sup -21/ W/Hz/sup -1/2/. Our nanostructured SSPDs, operated at 2.0 K, significantly outperform their semiconducting counterparts, and, together with their GHz counting rate and picosecond timing jitter, they are devices-of-choice for practical quantum key distribution systems and free-space (even interplanetary) quantum optical communications.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1467), last updated on Mon, 17 May 2021 16:59:03 -0500",
issn="1558-2515",
doi="10.1109/TASC.2005.849923",
opturl="https://doi.org/10.1109/TASC.2005.849923"
}