中国科学院 长春光学精密机械与物理研究所 光电对抗部, 吉林 长春 130033
张 引(1997-),男,河南鹤壁人,硕士研究生,2019年于太原理工大学获得学士学位,主要从事激光辐照效应方面的研究。E-mail: 15735154639@163.com
收稿:2020-07-11,
修回:2020-08-26,
纸质出版:2021-06-15
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张引,邵俊峰,汤伟.TEA CO2长波红外激光对红外凝视成像系统探测器组件的损伤效应[J].光学精密工程,2021,29(06):1217-1224. DOI: 10.37188/OPE.20212906.1217.
ZHANG Yin,SHAO Jun-feng,TANG Wei.Damage effect of TEA CO2 long wave infrared laser on detector assembly of infrared staring imaging system[J].Optics and Precision Engineering,2021,29(06):1217-1224. DOI: 10.37188/OPE.20212906.1217.
张引,邵俊峰,汤伟.TEA CO2长波红外激光对红外凝视成像系统探测器组件的损伤效应[J].光学精密工程,2021,29(06):1217-1224. DOI: 10.37188/OPE.20212906.1217. DOI:
ZHANG Yin,SHAO Jun-feng,TANG Wei.Damage effect of TEA CO2 long wave infrared laser on detector assembly of infrared staring imaging system[J].Optics and Precision Engineering,2021,29(06):1217-1224. DOI: 10.37188/OPE.20212906.1217. DOI:
为了探究长波红外激光对红外凝视成像系统HgCdTe红外探测器组件的损伤机理,在ANSYS软件仿真研究的基础,开展了9.3 μm激光对HgCdTe红外探测器损伤效应实验。通过利用ANSYS软件建立了激光辐照HgCdTe红外探测器的有限元理论仿真模型,获得了9.3 μm脉冲CO
2
激光照射下探测器模型的温升分布,以是否达到熔融温度为判定依据,得到探测器件的仿真损伤阈值。通过开展外场实验获得HgCdTe红外探测器真实工作环境下的损伤阈值,整理并分析实验结果得到HgCdTe红外探测器组件的实验损伤阈值。研究结果表明,基于有限元理论仿真得到的HgCdTe红外探测器模型的损伤阈值为0.54~1.1 J/cm
2
,与实验得到的损伤阈值0.69~1.23 J/cm
2
结果较为一致。仿真结果和实验结果均和Bartoli理论的计算结果符合得较好, 验证了模型和实验结果的合理性。
To explore the mechanism of damage caused to a HgCdTe infrared detector by a long-wave infrared laser, the damage caused by a 9.3 μm laser to an HgCdTe infrared detector was experimentally analyzed. A finite element simulation model of the HgCdTe infrared detector irradiated by the laser was established in ANSYS. The temperature rise distribution of the detector model under CO
2
laser irradiation with a 9.3 μm pulse was obtained. The theoretical damage threshold of the detector was determined based on whether the melting temperature had been reached. Subsequently, the damage threshold of an HgCdTe infrare
d detector in an actual working environment was determined through field experiments. The results show that the damage threshold is 0.54-1.1 J/cm
2
. The simulation results, which predict a damage threshold of 0.69-1.23 J/cm
2
, and the experimental results are in agreement with the Bartoli theory and are thus considered to be valid.
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