Study on thermodynamic effect of CCD detector irradiated by laser

被引：4
|
作者：
Ren, Xiaodong [1 ]
Lei, Wuhu [1 ]
Wang, Yong [1 ]
机构：
[1] Natl Univ Def Technol, Sch Elect Countermeasures, Hefei 230037, Anhui, Peoples R China
来源：
OPTIK | 2019年 / 185卷
基金：
安徽省自然科学基金;
关键词：
Laser of high repetition frequency; CCD; Thermodynamic effect; Finite element; Damage mechanism;
D O I：
10.1016/j.ijleo.2019.03.155
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The damage mechanism of the typical CCD detector irradiated by the Nd:YAG high repetition frequency pulsed laser was analyzed by finite element method. Based on the theory of heat conduction and thermal elasticity, a physical model of the CCD detector irradiated by the repetitive-frequency pulsed laser is established. The nonlinear variation of the material parameters with the temperature and the melting phase transition process are considered. The thermodynamic effects in time domain and space domain of the detector are calculated by finite element method and the damage mechanism of the detector is analyzed. The research results of this paper can provide necessary theoretical basis for laser damage and protection of the CCD image sensor.
引用
收藏
页码：497 / 504
页数：8
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