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Study of laser-induced defects in an optical multilayer coatings by spatial resolved method

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摘要

The spatial resolved method, which measures the laser-induced damage fluence by identifying the location of damage point at the Gaussian beam three-dimensional direction, is demonstrated. The advantages and practicality of this method has been explained. Taking a triple frequency beam splitter as an example, the defect damage fluence can be calculated by the spatial resolved method accurately. The different defect damage performance of the triple frequency splitter was distinguished under irradiations of 355nm laser only and 532nm laser only. The spatial resolved method provides a way to obtain precise information of optical film defect information.

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作者单位:

    State Key Laboratory of Applied Optics, Changchun Institute of optics, Fine Mechanics and Physics, Chinese Academy of Sciences
    IFSA Collaborative Innovation Center, Shanghai Jiao Tong University
    Shanghai Institute of Laser Plasma
    Shanghai institute of optics and fine mechanics
    Shanghai Insititute of Laser Plasma
    Shanghai institute of optics and fine mechanics

引用该论文

shan chong,Zhao Yuanan,Gao Yanqi,Zhao Xiaohui,Hu Guohang,Ma Weixin,Shao Jianda. Study of laser-induced defects in an optical multilayer coatings by spatial resolved method[J].Chinese Optics Letters,2019,17(3):03.