Laser-induced damage and periodic stripe structures of a CaF2 single crystal by an ArF excimer laser

被引：0
|
作者：
邵景珍 [1 ,2 ,3 ]
梁勖 [1 ,2 ,3 ]
游利兵 [1 ,2 ]
潘宁 [1 ]
林颖 [1 ]
王时茂 [1 ,2 ]
邓赞红 [1 ]
方晓东 [1 ,2 ]
王玺 [2 ,3 ]
机构：
[1] Anhui Provincial Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences
[2] Advanced Laser Technology Laboratory of Anhui Province
[3] State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology
来源：
Chinese Optics Letters | 2020年 / 18卷 / 02期
基金：
中国国家自然科学基金;
关键词：
excimer lasers; laser damage; optical materials; laser-induced periodic stripe structures;
D O I：
暂无
中图分类号：
TQ132.32 []; TN24 [激光技术、微波激射技术];
学科分类号：
0803 ; 080401 ; 080901 ; 0817 ;
摘要：
The laser-induced damage threshold of a calcium fluoride(CaF2) single crystal was obtained by a 193 nm ArF excimer laser. The damage morphology of the crystal was analyzed. The results showed that the surface of CaF2single crystal broke along the natural cleavage plane under ArF excimer laser irradiation, some fragments fell off,and Newton’s rings were observed on the curved fragments. Laser-induced periodic stripe structures(LIPSS)appeared on the surface layer beneath the fragments that peeled off. The spacing of LIPSS was measured, and the formation mechanism of LIPSS was analyzed based on the interference model.
引用
收藏
页码：60 / 64
页数：5
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