Title :
Superconducting Single-Photon Detector for Near- and Middle ir Wavelength Range
Author :
K. Smirnov;A. Korneev;O. Minaeva;A. Divochij;I. Rubtsova;A. Antipov;S. Ryabchun;O. Okunev;I. Milostnaya;G. Chulkova;B. Voronov;N. Kaurova;V. Seleznev;Yu. Korotetskaya;G. Goltsman
Author_Institution :
Moscow State Pedagogical University, Malaya Pirogovskaya, 1, Moscow, 119992, Russia, Ph.: +7(495) 2468899, e-mail: smirnov@scontel.ru
Abstract :
Presented in this paper are the results of research of NbN-film superconducting single-photon detector. At 2 K temperature, quantum efficiency in the visible light (0.56 mum) reaches 30-40 %. With the wavelength increase quantum efficiency decreases and comes to ~20% at 1.55 mum and ~0.02% at 5.6 mum. Minimum dark counts rate is 2times10-4s-1. The jitter of detector is 35 ps. The detector was successfully implemented for integrated circuits non-invasive optical testing. It is also perspective for quantum cryptography systems
Keywords :
"Infrared detectors","Helium","Jitter","Temperature sensors","Critical current","Gallium arsenide"
Conference_Titel :
Microwave and Telecommunication Technology, 2006. CriMiCO ´06. 16th International Crimean Conference
Print_ISBN :
966-322-006-6
DOI :
10.1109/CRMICO.2006.256157
