基于光学频率上转换的中红外探测研究进展  

Advancements and Future Prospects in Mid-Infrared Detection Technology Using Optical Frequency Up-Conversion

作　　者：郭旭 刘鹏翔[1,2,3] 付俏俏 祁峰 李伟[1,2,3,4] 李惟帆 Guo Xu;Liu Pengxiang;Fu Qiaoqiao;Qi Feng;Li Wei;Li Weifan(Shenyang Institute of Automation,Chinese Academy of Sciences,Shenyang 110169,Liaoning,China;Key Laboratory of Liaoning Province in Terahertz Imaging and Sensing,Shenyang 110169,Liaoning,China;Key Laboratory of Opto-Electronic Information Processing,Chinese Academy of Sciences,Shenyang 110169,Liaoning,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院沈阳自动化研究所,辽宁沈阳110169 [2]辽宁省太赫兹成像感知重点实验室,辽宁沈阳110169 [3]中国科学院光电信息处理重点实验室,辽宁沈阳110169 [4]中国科学院大学,北京100049

出　　处：《激光与光电子学进展》2024年第20期202-219,共18页Laser & Optoelectronics Progress

基　　金：中国科学院青年创新促进会(2019204,2023206);雄安新区科技创新专项任务(2022XAGG0181)。

摘　　要：中红外波段在环境遥感、天文观测、生物医学诊断和分子光谱等前沿领域具有重要的应用价值。高水平的中红外探测技术是实现上述应用的核心基础技术之一。随着窄禁带半导体和热敏材料等工艺的进步,中红外探测器性能得到了长足的发展。然而,与相邻波段的铟镓砷/硅基探测器相比,当前的中红外探测器在雪崩/计数和面阵等方面明显落后。将中红外光通过频率上转换,利用成熟的近红外/可见光器件实现高水平分析和感知,逐渐成为一种间接探测新范式,与传统的直接探测方法形成有效互补。本文梳理了国内外中红外上转换探测技术的主要发展历程,对探测系统“四要素”(非线性晶体、探针光源、待测中红外目标,以及光探测终端)进行了分类,总结了中红外单光子探测、光谱分析和成像等应用大方向的主要进展,最后展望了该探测技术的未来发展趋势。The mid-infrared band holds important application value in frontier fields such as environmental remote sensing,astronomical observation,biomedical diagnosis,and molecular spectroscopy.High-performance mid-infrared detection technology is crucial for realizing these applications.Advances in narrow-bandgap semiconductors and heatsensitive material technologies have greatly improved the performance of mid-infrared detectors.Despite this progress,mid-infrared detectors still lag behind InGaAs/Si-based detectors functioning in adjacent bands,particularly in avalanche/counting and planar array configurations.The frequency up-conversion of mid-infrared light using mature near-infrared and visible light devices to achieve high-level analysis and sensing has emerged as a new indirect detection paradigm that effectively complements traditional direct detection methods.This paper reviews the development history of mid-infrared frequency up-conversion detection technology both domestically and internationally,classifies the“four elements”of a detection system(i.e.,a nonlinear crystal,a probe light source,a mid-infrared target,and an optical detection terminal),and summarizes the key advances in mid-infrared single photon detection,spectral analysis,and imaging applications.The paper also discusses future directions for advancements in detection technology.

关 键 词：中红外探测 非线性光学 频率上转换 非线性晶体 光电探测器 

分 类 号：TN215[电子电信—物理电子学]