Title :
Recent Nanowire Superconducting Single-Photon Detector Optimization for Practical Applications
Author :
Korneev, Alexander ; Korneeva, Yuliya ; Manova, N. ; Larionov, P. ; Divochiy, Alexander ; Semenov, Alexander ; Chulkova, G. ; Vachtomin, Yu. ; Smirnov, K. ; Goltsman, G.
Author_Institution :
Moscow State Pedagogical Univ., Moscow, Russia
Abstract :
In this paper, we present our approaches to the development of fiber-coupled superconducting single photon detectors with enhanced photon absorption. For such devices we have measured detection efficiency in wavelength range from 500 to 2000 nm. The best fiber coupled devices exhibit detection efficiency of 44.5% at 1310 nm wavelength and 35.5% at 1550 nm at 10 dark counts per second.
Keywords :
infrared detectors; nanosensors; nanowires; niobium compounds; superconducting photodetectors; superconducting thin films; NbN; detection efficiency; enhanced photon absorption; fiber coupled devices; fiber-coupled superconducting single photon detector development; nanowire superconducting single-photon detector optimization; wavelength 500 nm to 2000 nm; Absorption; Detectors; Films; Mirrors; Optical fiber polarization; Temperature measurement; Wavelength measurement; Infrared single-photon detectors; superconducting NbN films; superconducting device fabrication; thin film devices;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2013.2251054
