PT Unknown
AU Gol'tsman, G
   Korneev, A
   Minaeva, O
   Rubtsova, I
   Milostnaya, I
   Chulkova, G
   Voronov, B
   Smirnov, K
   Seleznev, V
   Słysz, W
   Kitaygorsky, J
   Cross, A
   Pearlman, A
   Sobolewski, R
TI Superconducting nanostructured detectors capable of single-photon counting in the THz range
SE Proc. 16[super:th] Int. Symp. Space Terahertz Technol.
PY 2005
BP 555
EP 557
DE NbN SSPD; SNSPD
AB We present the results of the NbN superconducting single-photon detector sensitivity measurement in the visible to mid-IR range. For visible and near IR light (0.56 — 1.3μm wavelengths) the detector exhibits 30% quantum efficiency saturation value limited by the NbN film absorption and extremely low level of dark counts (2x10 -4 s -1). The detector manifested single-photon counting up to 6 μm wavelength with the quantum efficiency reaching 10 -2 % at 5.6 μm and 3 K temperature.
ER