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Damage on HfO2/SiO2 high-reflecting coatings under single and multiple Nd:YAG laser pulse irradiation

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Abstract

The single- and multi-shot damage behaviors of HfO2/SiO2 high-reflecting (HR) coatings under Nd:YAG laser exposure were investigated. Fundamental aspects of multi-shot laser damage, such as the instability due to pulse-to-pulse accumulation of absorption defect and structural defect effect, and the mechanism of laser induced defect generation, are considered. It was found in multi-shot damage, the main factors influencing laser-induced damage threshold (LIDT) are accumulation of irreversible changes of structural defects and thermal stress that induced by thermal density fluctuations.

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所属栏目:thin films

收稿日期:2004-09-22

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作者单位    点击查看

Weidong Gao:Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
Tao Wang:Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
Yuanan Zhao:Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
Jianda Shao:Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800

联系人作者:Weidong Gao(wdgao@mail.siom.ac.cn)

备注:This work was supported by the National "863" Project of China. W. Gao's e-mail address is wdgao@mail.siom.ac.cn

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引用该论文

Weidong Gao, Tao Wang, Yuanan Zhao, Jianda Shao, "Damage on HfO2/SiO2 high-reflecting coatings under single and multiple Nd:YAG laser pulse irradiation," Chinese Optics Letters 3(3), 179-180 (2005)

被引情况

【1】戴罡,陈彦北,陆建,沈中华,倪晓武. HfO2/SiO2 高反膜在1064nm激光作用下的热应力关系的研究. Chinese Optics Letters, 2009, 7(7): 601-604

【2】周明,赵元安,李大伟,范正修,邵建达. 1064 nm和532 nm激光共同辐照薄膜的损伤. 中国激光, 2009, 36(11): 3050-3054

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