中国物理B ›› 2015, Vol. 24 ›› Issue (6): 60303-060303.doi: 10.1088/1674-1056/24/6/060303

• GENERAL • 上一篇    下一篇

Statistical analysis of the temporal single-photon response of superconducting nanowire single photon detection

何宇昊, 吕超林, 张伟君, 张露, 巫君杰, 陈思井, 尤立星, 王镇   

  1. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
  • 收稿日期:2014-12-05 修回日期:2015-01-30 出版日期:2015-06-05 发布日期:2015-06-05
  • 基金资助:

    Project supported by the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (Grant No. XDB04010200), the National Basic Research Program of China (Grant No. 2011CBA00202), and the National Natural Science Foundation of China (Grant No. 61401441).

Statistical analysis of the temporal single-photon response of superconducting nanowire single photon detection

He Yu-Hao (何宇昊), Lü Chao-Lin (吕超林), Zhang Wei-Jun (张伟君), Zhang Lu (张露), Wu Jun-Jie (巫君杰), Chen Si-Jing (陈思井), You Li-Xing (尤立星), Wang Zhen (王镇)   

  1. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
  • Received:2014-12-05 Revised:2015-01-30 Online:2015-06-05 Published:2015-06-05
  • Contact: You Li-Xing E-mail:lxyou@mail.sim.ac.cn
  • About author:03.67.Dd; 42.60.Lh
  • Supported by:

    Project supported by the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (Grant No. XDB04010200), the National Basic Research Program of China (Grant No. 2011CBA00202), and the National Natural Science Foundation of China (Grant No. 61401441).

摘要:

A new method to study the transient detection efficiency (DE) and pulse amplitude of superconducting nanowire single photon detectors (SNSPD) during the current recovery process is proposed–statistically analyzing the single photon response under photon illumination with a high repetition rate. The transient DE results match well with the DEs deduced from the static current dependence of DE combined with the waveform of a single-photon detection event. This proves that static measurement results can be used to analyze the transient current recovery process after a detection event. The results are relevant for understanding the current recovery process of SNSPDs after a detection event and for determining the counting rate of SNSPDs.

关键词: single photon detector, recovery process, kinetic inductance

Abstract:

A new method to study the transient detection efficiency (DE) and pulse amplitude of superconducting nanowire single photon detectors (SNSPD) during the current recovery process is proposed–statistically analyzing the single photon response under photon illumination with a high repetition rate. The transient DE results match well with the DEs deduced from the static current dependence of DE combined with the waveform of a single-photon detection event. This proves that static measurement results can be used to analyze the transient current recovery process after a detection event. The results are relevant for understanding the current recovery process of SNSPDs after a detection event and for determining the counting rate of SNSPDs.

Key words: single photon detector, recovery process, kinetic inductance

中图分类号:  (Quantum cryptography and communication security)

  • 03.67.Dd
42.60.Lh (Efficiency, stability, gain, and other operational parameters)