Gated mode superconducting nanowire single photon detectors

被引：20
|
作者：
Akhlaghi, Mohsen K. [1 ,2 ]
Majedi, A. Hamed [1 ,2 ,3 ]
机构：
[1] Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L 3G1, Canada
[2] Univ Waterloo, ECE Dept, Waterloo, ON N2L 3G1, Canada
[3] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA
来源：
OPTICS EXPRESS | 2012年 / 20卷 / 02期
基金：
加拿大自然科学与工程研究理事会;
关键词：
D O I：
10.1364/OE.20.001608
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Single Photon Detectors are fundamental to quantum optics and quantum information. Superconducting nanowire detectors exhibit high performance in free-running mode, but have a limited maximum count rate. By exploiting a bistable superconducting nanowire system, we demonstrate the first gated-mode operation of these detectors for a large active area single element device at 625MHz, one order of magnitude faster than its free-running counterpart. We show the maximum count rate in gated-mode operation can be pushed to GHz range without a compromise on the active area or quantum efficiency, while reducing the dark count rate. (C) 2012 Optical Society of America
引用
收藏
页码：1608 / 1616
页数：9
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