TY  - STD
AU  - Verevkin, A.
AU  - Zhang, J.
AU  - Pearlman, A.
AU  - Slysz, W.
AU  - Sobolewski, Roman
AU  - Korneev, A.
AU  - Kouminov, P.
AU  - Okunev, O.
AU  - Chulkova, G.
AU  - Gol'tsman, G.
PY  - 2004
DA  - 2004//
TI  - Ultimate sensitivity of superconducting single-photon detectors in the visible to infrared range
KW  - NbN SSPD
KW  - SNSPD
AB  - We present our quantum efficiency (QE) and noise equivalent power (NEP) measurements of the meandertype ultrathin NbN superconducting single-photon detector in the visible to infrared radiation range. The nanostructured devices with 3.5-nm film thickness demonstrate QE up to~ 10% at 1.3–1.55 µm wavelength, and up to 20% in the entire visible range. The detectors are sensitive to infrared radiation with the wavelengths down to~ 10 µm. NEP of about 2× 10-18 W/Hz1/2 was obtained at 1.3 µm wavelength. Such high sensitivity together with GHz-range counting speed, make NbN photon counters very promising for efficient, ultrafast quantum communications and another applications. We discuss the origin of dark counts in our devices and their ultimate sensitivity in terms of the resistive fluctuations in our superconducting nanostructured devices.
UR  - https://www.researchgate.net/publication/229035832_Ultimate_sensitivity_of_superconducting_single-photon_detectors_in_the_visible_to_infrared_range
N1  - Not attributed to any publisher! File name: PR9_Vervekin_Sfin_f.doc; Author: JAOLEARY; Last modification date: 2004-02-26
ID  - Verevkin_etal2004
ER  -