A free-space coupled, large-active-area superconducting microstrip single-photon detector for photon-counting time-of-flight imaging

Numerous applications at the photon-starved regime require a free-space coupling singlephoton detector with a large active area, low dark count rate (DCR), and superior time resolutions. Here,we developed a superconducting microstrip single-photon detector (SMSPD), with a large active area of 260 um...

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Bibliographic Details
Published in:arXiv.org 2024-02
Main Authors: Yu-Ze, Wang, Wei-Jun, Zhang, Xing-Yu, Zhang, Guang-Zhao, Xu, Jia-Min, Xiong, Chen, Zhi-Gang, Yi-Yu, Hong, Xiao-Yu, Liu, Pu-Sheng Yuan, Wu, Ling, Wang, Zhen, Li-Xing, You
Format: Article
Language:English
Subjects:
Galvanometers
Photons
Superconductivity
Online Access:Get full text
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Summary:Numerous applications at the photon-starved regime require a free-space coupling singlephoton detector with a large active area, low dark count rate (DCR), and superior time resolutions. Here,we developed a superconducting microstrip single-photon detector (SMSPD), with a large active area of 260 um in diameter, a DCR of ~5 kcps, and a low time jitter of ~171 ps, operated at near-infrared of 1550 nm. As a demonstration, we applied the detector to a single-pixel galvanometer scanning system and successfully reconstructed object information in depth and intensity using a time-correlated photon counting technology.
ISSN:2331-8422