Chinese Optics Letters, 2019, 17 (3): 031403, Published Online: Mar. 8, 2019  

Laser-induced defects in optical multilayer coatings by the spatial resolved method Download: 575次

Author Affiliations
1 Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai 201800, China
2 Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
3 State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
4 IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
Abstract
The spatial resolved method, which measures the laser-induced damage fluence by identifying the location of the damage point in the Gaussian beam three-dimensional direction, is demonstrated. The advantages and practicality of this method have been explained. Taking a triple frequency beam splitter as an example, the defect damage fluence can be accurately calculated by the spatial resolved method. The different defect damage performance of the triple frequency splitter is distinguished under irradiations of only the 355 and 532 nm lasers. The spatial resolved method provides a way to obtain precise information of optical film defect information.

Chong Shan, Yuanan Zhao, Yanqi Gao, Xiaohui Zhao, Guohang Hu, Weixin Ma, Jianda Shao. Laser-induced defects in optical multilayer coatings by the spatial resolved method[J]. Chinese Optics Letters, 2019, 17(3): 031403.

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