@Article{Korneev_etal2005, author="Korneev, A. and Minaeva, O. and Rubtsova, I. and Milostnaya, I. and Chulkova, G. and Voronov, B. and Smirnov, K. and Seleznev, V. and Gol{\textquoteright}tsman, G. and Pearlman, A. and Slysz, W. and Cross, A. and Alvarez, P. and Verevkin, A. and Sobolewski, R.", title="Superconducting single-photon ultrathin NbN film detector", journal="Quantum Electronics", year="2005", volume="35", number="8", pages="698--700", optkeywords="NbN SSPD; SNSPD", abstract="Superconducting single-photon ultrathin NbN film detectors are studied. The development of manufacturing technology of detectors and the reduction of their operating temperature down to 2 K resulted in a considerable increase in their quantum efficiency, which reached in the visible region (at 0.56 $\mu$m) 30{\%}---40{\%}, i.e., achieved the limit determined by the absorption coefficient of the film. The quantum efficiency exponentially decreases with increasing wavelength, being equal to {\textasciitilde}20{\%} at 1.55 $\mu$m and {\textasciitilde}0.02{\%} at 5 $\mu$m. For the dark count rate of {\textasciitilde}10-4s-1, the experimental equivalent noise power was 1.5{\texttimes}10-20 W Hz-1/2; it can be decreased in the future down to the record low value of 5{\texttimes}10-21 W Hz-1/2. The time resolution of the detector is 30 ps.", optnote="Сверхпроводящий однофотонный детектор на основе ультратонкой пленки NbN", optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=383), last updated on Tue, 06 Jul 2021 12:53:47 -0500", doi="10.1070/QE2005v035n08ABEH009152", opturl="https://doi.org/10.1070/QE2005v035n08ABEH009152" }