Mechanism study of initial filamentary damage in optical components owing to surface contamination particles

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 高功率激光物理国家实验室

	Mechanism study of initial filamentary damage in optical components owing to surface contamination particles
	Sun, Xiaoyan ; Le, Zemin ; Lu, Xingqiang ; Fan, Dianyuan
	2015
会议名称	4th pacific rim laser damage symposium on optical materials for high-power lasers
通讯作者	sun, xy (reprint author), chinese acad sci, shanghai inst opt & fine mech, natl lab high power laser & phys, shanghai 201800, peoples r china.
英文摘要	contaminations existing inevitably in high-power laser facilities modulate laser beams and decrease beam quality. this study set up a detection system to study the mechanism of initial filamentary damage in optical components induced by surface contaminations. the effect of ordinary solid particles, liquid particles, and solid-liquid mixed particles on the near-field intensity distribution of laser beam was studied and analyzed statistically. the experiment results show that pure solid particles make the beam generate diffraction rings with dark center usually in the shadow of the particles which is a weak intensity modulation; pure liquid particles focus the localized beam into a bright spot rapidly, but it is diffracted away soon; solid-liquid mixed particles cause diffraction rings with strongly bright center, but the high local intensity can be diffracted away only after a longer distance, which is one of the reason that induces the initial filamentary damage to optical components. the research results can predict the likelihood of component damage, and the corresponding preventive measures help to keep the safe operation of high-power laser facilities.
收录类别	CPCI
会议录	pacific rim laser damage 2015: optical materials for high-power lasers
会议录出版者	spie-int soc optical engineering
语种	英语
内容类型	会议论文
源URL	[http://ir.siom.ac.cn/handle/181231/17183]
专题	上海光学精密机械研究所_高功率激光物理国家实验室
作者单位	1.[Sun, Xiaoyan 2.Le, Zemin 3.Lu, Xingqiang 4.Fan, Dianyuan] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Natl Lab High Power Laser & Phys, Shanghai 201800, Peoples R China 5.[Sun, Xiaoyan 6.Le, Zemin] Sch Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Sun, Xiaoyan,Le, Zemin,Lu, Xingqiang,et al. Mechanism study of initial filamentary damage in optical components owing to surface contamination particles[C]. 见:4th pacific rim laser damage symposium on optical materials for high-power lasers.