Analysis of temperature and damage characteristics of HgCdTe crystal on repetition frequency of COinf2/inf laser

	Analysis of temperature and damage characteristics of HgCdTe crystal on repetition frequency of COinf2/inf laser
	Wang, T.; W. Tang; J. Shao; R. Wang and J. Guo
	2015
发表期刊	Zhongguo Jiguang/Chinese Journal of Lasers
卷号	42 期号:2
摘要	In order to further research damage mechanism of HgCdTe crystal irradiated by high repetition frequency COinf2/inf laser. Temperature experiment of HgCdTe crystal irradiated by high repetition frequency COinf2/inf laser is conducted, and temperature rising progress of HgCdTe crystal irradiated by different repetition frequency COinf2/inf laser (1, 5, 10 kHz) are measured. Theoretical model of HgCdTe crystal irradiated by high repetition frequency COinf2/inf laser is developed, and the impact of laser repetition frequency on temperature characteristic is analyzed. The impact of thermal stress on damage characteristic is analyzed basing on scanning electron microscope (SEM) damage morphology and the value of temperature rising and thermal stress calculated by ANSYS. The research results show that temperature of the crystal irradiated by high repetition frequency COinf2/inf laser gradually rise with increasing of irradiation time, and thermal equilibrium should have been attained on the Hginf0.826/infCdinf0.174/infTe crystal when irradiation time is 10 s. When repetition frequency ismore than 1 kHz, the temperature mainly depends on laser average power density, and doesn't depend on repetition frequency. The maximum thermal stress is 510sup7/sup Pa when Hginf0.826/infCdinf0.174/infTe crystal surface melts, the value of which is less than the ultimate stress. The conclusions have a reference value for laser protection on high repetition frequency COinf2/inf laser. , 2015, Science Press. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56384
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wang, T.,W. Tang,J. Shao,et al. Analysis of temperature and damage characteristics of HgCdTe crystal on repetition frequency of COinf2/inf laser[J]. Zhongguo Jiguang/Chinese Journal of Lasers,2015,42(2).
APA	Wang, T.,W. Tang,J. Shao,&R. Wang and J. Guo.(2015).Analysis of temperature and damage characteristics of HgCdTe crystal on repetition frequency of COinf2/inf laser.Zhongguo Jiguang/Chinese Journal of Lasers,42(2).
MLA	Wang, T.,et al."Analysis of temperature and damage characteristics of HgCdTe crystal on repetition frequency of COinf2/inf laser".Zhongguo Jiguang/Chinese Journal of Lasers 42.2(2015).

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