Experimental study of PbS detector irradiated by 2.79 μm mid-infrared laser
投稿时间:2021-01-16  修订日期:2021-09-06  download
Citation:
摘要点击次数: 358
全文下载次数: 43
作者单位邮编
王玺 国防科技大学 电子对抗学院 脉冲功率激光技术国家重点实验室安徽 合肥 230037
国防科技大学 电子对抗学院 先进激光技术安徽省实验室安徽 合肥 230037 
230037
叶庆 国防科技大学 电子对抗学院 脉冲功率激光技术国家重点实验室安徽 合肥 230037
国防科技大学 电子对抗学院 先进激光技术安徽省实验室安徽 合肥 230037 
董骁 国防科技大学 电子对抗学院 脉冲功率激光技术国家重点实验室安徽 合肥 230037 
雷武虎 国防科技大学 电子对抗学院 脉冲功率激光技术国家重点实验室安徽 合肥 230037
国防科技大学 电子对抗学院 先进激光技术安徽省实验室安徽 合肥 230037 
吕桐林 国防科技大学 电子对抗学院 脉冲功率激光技术国家重点实验室安徽 合肥 230037 
郭彦廷 国防科技大学 电子对抗学院 脉冲功率激光技术国家重点实验室安徽 合肥 230037 
胡以华 国防科技大学 电子对抗学院 脉冲功率激光技术国家重点实验室安徽 合肥 230037
国防科技大学 电子对抗学院 先进激光技术安徽省实验室安徽 合肥 230037
国防科技大学 电子对抗学院 电子制约技术安徽省重点实验室安徽 合肥 230037 
230037
Abstract:It has very important application value to investigate the damage performance of PbS detector irradiated by mid-infrared laser. In this paper, the experiment research on damage in PbS detector irradiated by 2.79 μm mid-infrared laser is carried out. Furthermore, the theoretical model of PbS detector irradiated by 2.79 μm laser is developed and a numerical simulation is performed to calculate temperature distribution in PbS detector using finite element method, and the relationship between laser parameters and damage effect is also studied. The simulation and experimental results indicate that the damage mechanism of PbS detector irradiated by 2.79 μm mid-infrared laser is mainly melting damage, and the melting damage threshold is calculated to be 13.03 J/cm2. Before the temperature reaches the melting point of PbS, the thermal decomposition reaction of PbS begins, and then separates out PbO which is the yellow precipitate. It is shown that pulse repetition frequency and the number of pulses affect damage considerably, and the accumulation of multi-shot laser induced damage in PbS detector is obvious. The theoretical analysis is in agreement with the initial damage morphology of PbS surface.
keywords:laser damage  numerical analysis  2.79 μm mid-infrared laser  PbS detector
  HTML  查看/发表评论  下载PDF阅读器

《Journal of Infrared And Millimeter Waves》