Timing jitter of cascade switch superconducting nanowire single photon detectors

被引：23

作者：

Ejrnaes, M. ^{[1
]}

Casaburi, A. ^{[1
,2
]}

Cristiano, R. ^{[1
]}

Quaranta, O. ^{[2
]}

Marchetti, S. ^{[2
]}

Martucciello, N. ^{[2
,3
]}

Pagano, S. ^{[1
,4
]}

Gaggero, A. ^{[5
]}

Mattioli, F. ^{[5
]}

Leoni, R. ^{[5
]}

Cavalier, P. ^{[6
]}

Villegier, J-C. ^{[6
]}

机构：

[1] CNR, Ist Cibernet E Caianiello, I-80078 Pozzuoli, Italy

[2] Univ Salerno, Dipartimento Fis ER Caianiello, I-84081 Baronissi, Italy

[3] CNR INFM Salerno, Lab Reg SuperMat, I-84081 Baronissi, Italy

[4] Univ Salerno, Dipartimento Matemat & Informat, I-84081 Baronissi, Italy

[5] CNR, Ist Foton & Nanotecnol, I-00156 Rome, Italy

[6] CEA Grenoble, SPSMS, Inst Nanosci & Cryogen, F-38054 Grenoble 9, France

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 13期

关键词：

BRIDGES;

D O I：

10.1063/1.3237172

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate the timing jitter in parallel superconducting NbN-nanowire single photon detectors based on a cascade switch mechanism. The measured timing jitter is asymmetric and has an oscillatory dependence on bias current. At the highest bias current the full width at half maximum was 1.5 times larger than an on-chip reference meander NbN nanowire. A physical model of the dynamics occurring during cascade switch is developed, that quantitatively accounts for our observations as a consequence of different nanowire critical currents within the detector. (C) 2009 American Institute of Physics. [doi:10.1063/1.3237172]

引用

页数：3

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