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arXiv physics/0510238physics.ins-detphysics.optics
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超导纳米线光子计数器的动态电感限制复位时间

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

Andrew J. Kerman, Eric A. Dauler, William E. Keicher, Joel K. W. Yang, Karl K. Berggren, G. Gol'tsman, B. Voronov

摘要:

我们研究了在1550 nm波长的光脉冲检测后超导NbN纳米线光子计数器的恢复,并提出了一个模型,定量占我们的观察。复位时间被发现是有限的这些纳米线,这迫使计数率和检测效率或有效面积之间的权衡大的动力学电感。可用的大小和高检测效率的设备被发现具有复位时间的数量级长于其固有的光响应时间。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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