长波激光对红外探测器成像干扰效果研究  

Research on jamming effect of long-wave laser on infrared detector imaging

作　　者：韩刚 石学虎 范瑜 刘伟 HAN Gang;SHI Xue-hu;FAN Yu;LIU Wei(Beijing Institute of Remote Sensing Equipment,Beijing 100039,China;Key Laboratory of Optical Countermeasure Test and Evaluation Technology,Luoyang 471000,China)

机构地区：[1]北京遥感设备研究所,北京100039 [2]光电对抗测试评估技术重点实验室,河南洛阳471000

出　　处：《激光与红外》2024年第9期1449-1454,共6页Laser & Infrared

基　　金：光电对抗测试评估技术重点实验室项目(No.GKCP2020002)资助。

摘　　要：为了研究长波激光对红外探测器成像性能的影响,利用10.6μm激光开展了对红外探测器的干扰实验。根据图像采集结果,随着激光功率增加,可将干扰类型分为光斑不变区、扩展区和损伤区,各区对应的功率阈值分别为9.35×10^(-6)、2.99×10^(-4)和9.35×10^(-4)mW/cm^(2)。各激光功率下的光斑特性差异主要归因于激光作用机理的不同,损伤区之前干扰效果主要由电子效应产生,而损伤区则以热积累作用为主。本研究结果丰富了长波激光对长波红外成像系统干扰效应的理解,为长波激光干扰的应用提供了依据。To study the influence of long-wave laser on the detection performance of infrared imaging detector,interference experiments on infrared detectors are carried out using a 10.6μm laser.According to the image acquisition results,with the increase of laser power,the type of interference can be categorized into spot-invariant zone,expansion zone and damage zone,and the corresponding power threshold of each area is 9.35×10^(-6),2.99×10^(-4)and 9.35×10^(-4)mW/cm^(2),respectively.The differences of spot characteristics under varied laser power are mainly attributed to the difference of laser action mechanism.The interference effect before the damage zone is mainly generated by electronic effect,while the damage zone is dominated by thermal accumulation.The results of this study enrich the understanding of the interference effect of long-wave laser on long-wave infrared imaging system,and provide a basis for the application of long-wave laser interference.

关 键 词：激光 干扰 探测器 红外成像 

分 类 号：TN249[电子电信—物理电子学] TN977