PT Journal
AU Smirnov, KV
   Divochiy, AV
   Vakhtomin, YB
   Sidorova, MV
   Karpova, UV
   Morozov, PV
   Seleznev, VA
   Zotova, AN
   Vodolazov, DY
TI Rise time of voltage pulses in NbN superconducting single photon detectors
SO Appl. Phys. Lett.
JI Appl. Phys. Lett.
PY 2016
BP 052601
VL 109
IS 5
DI 10.1063/1.4960533
DE SSPD; SNSPD
AB We have found experimentally that the rise time of voltage pulse in NbN superconducting single photon detectors increases nonlinearly with increasing the length of the detector L. The effect is connected with dependence of resistance of the detector Rn, which appears after photon absorption, on its kinetic inductance Lk and, hence, on the length of the detector. This conclusion is confirmed by our calculations in the framework of two temperature model.D.Yu.V. acknowledges the support from the Russian Foundation for Basic Research (Project No. 15-42-02365). K.V.S. acknowledges the financial support from the Ministry of Education and Science of the Russian Federation (Contract No. 3.2655.2014/K).
ER