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- Title
Single photon detector with high polarization sensitivity.
- Authors
Guo, Qi; Li, Hao; You, LiXing; Zhang, WeiJun; Zhang, Lu; Wang, Zhen; Xie, XiaoMing; Qi, Ming
- Abstract
Polarization is one of the key parameters of light. Most optical detectors are intensity detectors that are insensitive to the polarization of light. A superconducting nanowire single photon detector (SNSPD) is naturally sensitive to polarization due to its nanowire structure. Previous studies focused on producing a polarization-insensitive SNSPD. In this study, by adjusting the width and pitch of the nanowire, we systematically investigate the preparation of an SNSPD with high polarization sensitivity. Subsequently, an SNSPD with a system detection efficiency of 12% and a polarization extinction ratio of 22 was successfully prepared.
- Subjects
POLARIZED photons; PHOTON detectors; QUANTUM optics; OPTICAL sensors; NANOWIRE optical sensors; FINITE element method
- Publication
Scientific Reports, 2015, p9616
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/srep09616