%0 Generic
%T Optical single photon detection in micron-scaled NbN bridges
%A Korneeva, Y. P.
%A Vodolazov, D. Y.
%A Semenov, A. V.
%A Florya, I. N.
%A Simonov, N.
%A Baeva, E.
%A Korneev, A. A.
%A Goltsman, G. N.
%A Klapwijk, T. M.
%D 2018
%F Korneeva_etal2018
%O Duplicated as 1303
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1312), last updated on Sun, 09 May 2021 21:21:44 -0500
%X We demonstrate experimentally that single photon detection can be achieved in micron-wide NbN bridges, with widths ranging from 0.53 μm to 5.15 μm and for photon-wavelengths from 408 nm to 1550 nm. The microbridges are biased with a dc current close to the experimental critical current, which is estimated to be about 50 % of the theoretically expected depairing current. These results offer an alternative to the standard superconducting single-photon detectors (SSPDs), based on nanometer scale nanowires implemented in a long meandering structure. The results are consistent with improved theoretical modelling based on the theory of non-equilibrium superconductivity including the vortex-assisted mechanism of initial dissipation.
%K SSPD
%9 miscellaneous
%U https://arxiv.org/abs/1802.02881v1