%0 Journal Article
%T Single photon detection system for visible and infrared spectrum range
%A Divochiy, A.
%A Misiaszek, M.
%A Vakhtomin, Y.
%A Morozov, P.
%A Smirnov, K.
%A Zolotov, P.
%A Kolenderski, P.
%J Opt. Lett.
%D 2018
%V 43
%N 24
%@ 0146-9592
%G English
%F Divochiy_etal2018
%O https://arxiv.org/abs/1807.04273
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1227), last updated on Sun, 04 Jul 2021 16:29:00 -0500
%X We demonstrate niobium nitride based superconducting single-photon detectors sensitive in the spectral range 452-2300 nm. The system performance was tested in a real-life experiment with correlated photons generated by means of spontaneous parametric downconversion, where one photon was in the visible range and the other was in the infrared range. We measured a signal to noise ratio as high as 4x10(4) in our detection setting. A photon detection efficiency as high as 64% at 1550 nm and 15% at 2300 nm was observed.
%R 10.1364/OL.43.006085
%U https://www.osapublishing.org/ol/abstract.cfm?uri=ol-43-24-6085
%U https://doi.org/10.1364/OL.43.006085
%P 6085-6088