High efficiency NbN nanowire superconducting single photon detectors fabricated on MgO substrates from a low temperature process

被引:54
作者
Marsili, F. [1 ]
Bitauld, D. [1 ]
Fiore, A. [1 ]
Gaggero, A. [2 ]
Mattioli, F. [2 ]
Leoni, R. [2 ]
Benkahoul, M. [3 ]
Levy, F. [3 ]
机构
[1] Ecole Polytech Fed Lausanne, IPEQ, CH-1015 Lausanne, Switzerland
[2] CNR, IFN, I-00156 Rome, Italy
[3] Ecole Polytech Fed Lausanne, IPMC, CH-1015 Lausanne, Switzerland
来源
OPTICS EXPRESS | 2008年 / 16卷 / 05期
关键词
D O I
10.1364/OE.16.003191
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We demonstrate high-performance nanowire superconducting single photon detectors (SSPDs) on bN thin films grown at a temperature compatible with monolithic integration. NbN films ranging from 150nm to 3nm in thickness were deposited by dc magnetron sputtering on MgO substrates at 400 degrees C. SSPDs were fabricated on high quality NbN films of different thickness (7 to 3nm) deposited under optimal conditions. Electrical and optical characterizations were performed on the SSPDs. The highest QE value measured at 4.2K is 20% at 1300nm. (c) 2008 Optical Society of America.
引用
收藏
页码:3191 / 3196
页数:6
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