中国物理B ›› 2014, Vol. 23 ›› Issue (6): 60308-060308.doi: 10.1088/1674-1056/23/6/060308

• GENERAL • 上一篇    下一篇

Performance of superconducting nanowire single-photon detector with the fan coupling antenna array

王玉珏, 丁天, 马海强, 焦荣珍   

  1. School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2013-09-09 修回日期:2013-12-02 出版日期:2014-06-15 发布日期:2014-06-15
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2010CB923202).

Performance of superconducting nanowire single-photon detector with the fan coupling antenna array

Wang Yu-Jue (王玉珏), Ding Tian (丁天), Ma Hai-Qiang (马海强), Jiao Rong-Zhen (焦荣珍)   

  1. School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2013-09-09 Revised:2013-12-02 Online:2014-06-15 Published:2014-06-15
  • Contact: Jiao Rong-Zhen E-mail:rzjiao@bupt.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2010CB923202).

摘要: The performance of superconducting nanowire single-photon detector (SNSPD) involving niobium nitride with the fan coupling antenna array is analyzed. The SNSPD has a high detection efficiency and counting rate. Hydrogen silsesquioxane and niobium nitride are filled in the gold grating deposited on the substrate in which the fan coupling antenna arrays are embedded. By changing the position of the fan coupling antenna array, the maximum area of optical intensity is obtained and the photon collection efficiency is increased by 26.5 times. The detection efficiency of SNSPD is improved without changing the detection speed. These parameters are important for designing a practical single-photon detector.

关键词: surface plasmon polaritons, single-photon detector, nano-antenna array

Abstract: The performance of superconducting nanowire single-photon detector (SNSPD) involving niobium nitride with the fan coupling antenna array is analyzed. The SNSPD has a high detection efficiency and counting rate. Hydrogen silsesquioxane and niobium nitride are filled in the gold grating deposited on the substrate in which the fan coupling antenna arrays are embedded. By changing the position of the fan coupling antenna array, the maximum area of optical intensity is obtained and the photon collection efficiency is increased by 26.5 times. The detection efficiency of SNSPD is improved without changing the detection speed. These parameters are important for designing a practical single-photon detector.

Key words: surface plasmon polaritons, single-photon detector, nano-antenna array

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

  • 03.67.Dd