%0 Journal Article
%T Quasiparticle recombination in hotspots in superconducting current-carrying nanowires
%A Kozorezov, A. G.
%A Lambert, C.
%A Marsili, F.
%A Stevens, M. J.
%A Verma, V. B.
%A Stern, J. A.
%A Horansky, R.
%A Dyer, S.
%A Duff, S.
%A Pappas, D. P.
%A Lita, A.
%A Shaw, M. D.
%A Mirin, R. P.
%A Sae Woo Nam
%D 2015
%V 92
%N 6
%G English
%F Kozorezov_etal2015
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1003), last updated on Mon, 28 Sep 2015 13:32:55 -0500
%X We describe a kinetic model of recombination of non-equilibrium quasiparticles generated by single photon absorption in superconducting current-carrying nanowires. The model is developed to interpret two-photon detection experiments in which a single photon does not possess sufficient energy for breaking superconductivity at a fixed low bias current. We show that quasiparticle self- recombination in relaxing hotspot dominates diffusion expansion effects and explains the observed strong bias current, wavelength and temperature dependencies of hotspot relaxation in tungsten silicide superconducting nanowire single-photon detectors.
%R 10.1103/PhysRevB.92.064504
%U https://doi.org/10.1103/PhysRevB.92.064504