Performance of superconducting single photon detector with nano-antenna

doi:10.1088/1674-1056/21/12/120306

Chin. Phys. B ›› 2012, Vol. 21 ›› Issue (12): 120306-120306.doi: 10.1088/1674-1056/21/12/120306

Performance of superconducting single photon detector with nano-antenna

张弨, 焦荣珍

School of Science, Beijing University of Post and Telecommunications, Beijing 100876, China

收稿日期:2012-03-20 修回日期:2012-05-23 出版日期:2012-11-01 发布日期:2012-11-01
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2010CB923202).

Performance of superconducting single photon detector with nano-antenna

Zhang Chao (张弨), Jiao Rong-Zhen (焦荣珍)

School of Science, Beijing University of Post and Telecommunications, Beijing 100876, China

Received:2012-03-20 Revised:2012-05-23 Online:2012-11-01 Published:2012-11-01
Contact: Jiao Rong-Zhen E-mail:jiaorongzhen@126.com
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2010CB923202).

摘要/Abstract

摘要： The performance of single-photon detectors can be enhanced by using nano-antenna. The characteristics of the superconducting nano-wire single-photon detector with cavity plus anti-reflect coating and specially designed nano-antenna is analysed. The photon collection efficiency of the detector is enhanced without damaging the detector's speed, thus getting rid of the dilemma of speed and efficiency. The characteristics of nano-antenna are discussed, such as the position and the effect of the active area, and the best result is given. The photon collection efficiency is increased by 92 times compared with that of existing detectors.

关键词: quantum communication, superconducting single photon detector, nano-antenna

Abstract: The performance of single-photon detectors can be enhanced by using nano-antenna. The characteristics of the superconducting nano-wire single-photon detector with cavity plus anti-reflect coating and specially designed nano-antenna is analysed. The photon collection efficiency of the detector is enhanced without damaging the detector's speed, thus getting rid of the dilemma of speed and efficiency. The characteristics of nano-antenna are discussed, such as the position and the effect of the active area, and the best result is given. The photon collection efficiency is increased by 92 times compared with that of existing detectors.

Key words: quantum communication, superconducting single photon detector, nano-antenna

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

03.67.Dd

03.67.Hk (Quantum communication)

张弨, 焦荣珍. Performance of superconducting single photon detector with nano-antenna[J]. Chin. Phys. B, 2012, 21(12): 120306-120306.

Zhang Chao (张弨), Jiao Rong-Zhen (焦荣珍). Performance of superconducting single photon detector with nano-antenna[J]. Chin. Phys. B, 2012, 21(12): 120306-120306.

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Performance of superconducting single photon detector with nano-antenna

Performance of superconducting single photon detector with nano-antenna

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