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激光辐照 HgCdTe探测器输出特性与软损伤判定

HgCdTe Detector Output Characteristics and Soft Damage Determination under Laser Irradiation

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摘要

根据 PV探测器的开路输出公式,建立了涵盖长波、中波、短波的 HgCdTe探测器响应模型。模型仿真发现探测器被激光辐照后产生的温升将降低探测器的输出,探测器被激光直接照射后会立即产生饱和输出。综合实际应用提出了探测器软损伤的判断门限。

Abstract

Based on the open-circuit output function of a photovoltaic (PV) detector, the response model of a HgCdTe detector that is operable in the long-wave, medium-wave, and short-wave bands is established. Simulation results show that the temperature rise generated by laser irradiation reduces the output of the detector, and the detector produces a saturated output immediately upon direct irradiation by the laser. Based on practical applications, the threshold of soft damage to the detector is proposed.

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中图分类号:TN215

所属栏目:材料与器件

收稿日期:2020-01-16

修改稿日期:2020-07-10

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作者单位    点击查看

范永杰:昆明理工大学理学院,云南昆明 650500
秦强:昆明物理研究所,云南昆明 650223

联系人作者:范永杰(47883027@qq.com)

备注:范永杰( 1980-),男,博士,讲师,主要从事夜视与红外技术、光电图像处理以及光电检测方面的研究与教学工作。

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引用该论文

FAN Yongjie,QIN Qiang. HgCdTe Detector Output Characteristics and Soft Damage Determination under Laser Irradiation[J]. Infrared Technology, 2020, 42(9): 829-832

范永杰,秦强. 激光辐照 HgCdTe探测器输出特性与软损伤判定[J]. 红外技术, 2020, 42(9): 829-832

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