TY  - STD
AU  - Korneeva, Y. P.
AU  - Vodolazov, D. Y.
AU  - Semenov, A. V.
AU  - Florya, I. N.
AU  - Simonov, N.
AU  - Baeva, E.
AU  - Korneev, A. A.
AU  - Goltsman, G. N.
AU  - Klapwijk, T. M.
PY  - 2018
DA  - 2018//
TI  - Optical single photon detection in micron-scaled NbN bridges
KW  - SSPD
AB  - 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.
UR  - https://arxiv.org/abs/1802.02881v1
N1  - Duplicated as 1303
ID  - Korneeva_etal2018
ER  -