%0 Journal Article
%T New generation of nanowire NbN superconducting single-photon detector for mid-infrared
%A Korneeva, Y.
%A Florya, I.
%A Semenov, A.
%A Korneev, A.
%A Goltsman, G.
%J IEEE Trans. Appl. Supercond.
%D 2011
%V 21
%N 3
%F Korneeva_etal2011
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=644), last updated on Thu, 13 May 2021 23:57:46 -0500
%X We present a break-through approach to mid-infrared single-photon detection based on nanowire NbN superconducting single-photon detectors (SSPD). Although SSPD became a mature technology for telecom wavelengths (1.3-1.55 μm) its further expansion to mid-infrared wavelength was hampered by low sensitivity above 2 μm. We managed to overcome this limit by reducing the nanowire width to 50 nm, while retaining high superconducting properties and connecting the wires in parallel to produce a voltage response of sufficient magnitude. The new device exhibits 10 times better quantum efficiency at 3.5 μm wavelength than the “standard” SSPD.
%K SSPD
%R 10.1109/TASC.2010.2087740
%U https://doi.org/10.1109/TASC.2010.2087740
%P 323-326