Kinetic-inductance-limited reset time of superconducting nanowire photon counters

被引：386

作者：

Kerman, AJ ^{[1
]}

Dauler, EA

Keicher, WE

Yang, JKW

Berggren, KK

Gol'tsman, G

Voronov, B

机构：

[1] MIT, Lincoln Lab, Lexington, MA 02420 USA

[2] MIT, Elect Res Lab, Cambridge, MA 02139 USA

[3] Moscow State Pedag Univ, Moscow 119345, Russia

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 11期

关键词：

D O I：

10.1063/1.2183810

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate the recovery of superconducting NbN-nanowire photon counters after detection of an optical pulse at a wavelength of 1550 nm, and present a model that quantitatively accounts for our observations. The reset time is found to be limited by the large kinetic inductance of these nanowires, which forces a tradeoff between counting rate and either detection efficiency or active area. Devices of usable size and high detection efficiency are found to have reset times orders of magnitude longer than their intrinsic photoresponse time.

引用

页数：3

共 21 条

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[2]

Gagliardi R. M., 1976, OPTICAL COMMUNICATIO

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