中国空间科学技术（中英文）2026，Vol.46Issue(1)：83-96,14.DOI:10.16708/j.cnki.1000-758X.2026.0011
中长波红外SNSPD及其天文应用探讨
Mid-to long-wave infrared SNSPD and discussion on its applications in astronomy
摘要
Abstract
Superconducting nanowire single-photon detector(SNSPD)is a high-performance single-photon detector that can be extended to the mid-to long-wave infrared range.It is highly suitable for astronomical observation missions with requirements of a wide observation range,weak signal detection,and low dark count rates.This article introduces optical response models of SNSPD,establishes a connection between SNSPD parameters and astronomical measures,and describes the development of SNSPD in the mid-to long-wave infrared band.It analyzes the research directions and difficulties from the perspectives of materials,fabrications,device structures,optical enhancement structures,and large array size.It discusses the feasibility of its applications in astronomical detection fields,such as Lidar and exoplanet spectral detection.Finally,it summarizes and looks forward to the development direction of mid-to long-wave SNSPD,highlighting the issues that still need to be resolved,such as further wavelength extension,infrared optical enhancement structures,and miniaturization.SNSPD has achieved saturated internal quantum efficiency at 29μm,but there is still a far way from realizing megapixel arrays and high-detection efficiency devices.With the advancement of micro-nano processing technology and refrigeration technology,it is accessible to achieve high-efficiency mid-to long-wave SNSPD array devices on satellites.关键词
中长波红外/超导纳米线单光子探测器/行星宜居性探测/天文探测Key words
mid-to long-wave infrared/superconducting nanowire single-photon detector/habitable planets detection/astronomical observation分类
信息技术与安全科学引用本文复制引用
徐鼎言,陈奇,张蜡宝,吴培亨..中长波红外SNSPD及其天文应用探讨[J].中国空间科学技术（中英文）,2026,46(1):83-96,14.基金项目
民用航天预先研究项目(D010104) （D010104）
