光学精密工程2026，Vol.34Issue(1)：44-52,9.DOI:10.37188/OPE.20263401.0044
基于紫外增强空间光调制技术的单光子计数成像探测系统
Single-photon-counting imaging detection system based on UV-enhanced spatial light modulation technology
摘要
Abstract
To meet the increasing demand for high-sensitivity,large-dynamic-range detection in space weather monitoring,ultraviolet(UV)early-warning reconnaissance,and advanced analytical instrumenta-tion,a single-photon-counting UV imaging detection system is presented.High sensitivity and low noise in the UV band are achieved by integrating an array single-photon counter with a UV-enhanced digital mi-cromirror device(DMD)featuring small pixel size and a high spatial light-modulation rate.Dynamic ad-justment of spectral sequences on a per-pixel basis is enabled,and pixel-level modulation of incident pho-tons is implemented at the array single-photon counter.When weak target spectral signals are identified,an encoding modulation strategy is applied to improve the signal-to-noise ratio(SNR)within the target imag-ing region.Based on region identification and spatial-domain correlation,multi-level irradiance control is im-posed on corresponding sensor pixels,allowing saturated regions to be rapidly driven into the optimal re-sponse range.The coupled internal optical architecture is described,and key performance metrics includ-ing wavelength range,dark count rate,and dynamic range are evaluated.Experiments demonstrate a response wavelength range of 180-320 nm,a dynamic range of 163.9 dB,a dark count rate of 0.481 cps/cm²,and a system transfer function exceeding 0.6,consistent with the design targets.The devel-oped system supports high-sensitivity UV spectral imaging with low dark counts,fine spatial resolu-tion,and high-speed spatial modulation,providing enabling technology for high-sensitivity UV imaging applications in China.关键词
短波光学/紫外成像/单光子计数成像/空间光调制/耦合成像/高灵敏度探测Key words
shortwave optics/UV imaging detection/single-photon-counting imaging/spatial light mod-ulation/coupled imaging/high-sensitivity detection分类
数理科学引用本文复制引用
郭乃菲,孙亮,何玲平,马天奇,陶琛,王玮,闫万红..基于紫外增强空间光调制技术的单光子计数成像探测系统[J].光学精密工程,2026,34(1):44-52,9.基金项目
国家自然科学基金资助项目(No.62205331) （No.62205331）
国家重点研发计划基础科研条件与重大科学仪器设备研发项目(No.2022YFF0708500) （No.2022YFF0708500）
