A cascade switching superconducting single photon detector

被引：111
|
作者：
Ejrnaes, M. [1 ]
Cristiano, R. [1 ]
Quaranta, O. [2 ]
Pagano, S. [2 ]
Gaggero, A. [3 ,4 ]
Mattioli, F. [4 ]
Leoni, R. [4 ]
Voronov, B. [5 ]
Gol'tsman, G. [5 ]
机构：
[1] CNR, Ist Cibernet E Caianiello, I-84081 Baronissi, Italy
[2] Univ Salerno, Dipartimento Fis ER Caianiello, I-84081 Baronissi, Italy
[3] Univ Roma TRE, I-01146 Rome, Italy
[4] CNR, Ist Foton & Naotechnol, I-00156 Rome, Italy
[5] Moscow State Pedag Univ, Moscow 119435, Russia
来源：
APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 26期
关键词：
D O I：
10.1063/1.2828138
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have realized superconducting single photon detectors with reduced inductance and increased signal pulse amplitude. The detectors are based on a parallel connection of ultrathin NbN nanowires with a common bias inductance. When properly biased, an absorbed photon induces a cascade switch of all the parallel wires generating a signal pulse amplitude of 2 mV. The parallel wire configuration lowers the detector inductance and reduces the response time well below 1 ns. (c) 2007 American Institute of Physics.
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页数：3
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