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Q开关Nd:YAG脉冲激光对红外滤光片的损伤效应
引用本文:袁永华,刘颂豪,孙承纬,罗福,范正修,廖常俊,胡海洋.Q开关Nd:YAG脉冲激光对红外滤光片的损伤效应[J].强激光与粒子束,2002,14(5):677-680.
作者姓名:袁永华  刘颂豪  孙承纬  罗福  范正修  廖常俊  胡海洋
作者单位:1. 华南师范大学 量子电子学研究所, 广东 广州 100008; 2. 中国工程物理研究院 流体物理研究所, 四川 绵阳 621900;3. 中国科学院 上海光学精密机械研究所, 上海 201800
基金项目:国家 8 63激光技术领域资助课题
摘    要: 介绍了由滤光片膜层结构决定的激光在光学薄膜中形成温度场及驻波场特性。用1.06μm调Q Nd:YAG激光器,在激光脉冲宽度10ns和光斑直径0.61μm的条件下,进行了激光辐照红外滤光片的损伤特性实验研究。根据脉冲激光辐照红外滤光片后样品损伤分析,发现滤光片的最初损伤发生在里面的膜层中,从而在实验上验证了计算得到的滤光片膜层中存在其温度场及驻波场的结果。它对提高红外滤光片的抗激光辐照能力研究具有一定的参考价值。

关 键 词:激光辐照效应  红外滤光片  光学薄膜  温度场  驻波场  激光损伤
文章编号:1001-4322(2002)05-0677-04
收稿时间:2001/10/10
修稿时间:2001年10月10

Damage effects of Q-switched Nd:YAG laser beam on IR filter
YUAN Yong hua ,LIU Song hao ,SUN Cheng wei ,LUO Fu ,FAN Zheng xiu ,LIAO Chang jun ,HU Hai yang.Damage effects of Q-switched Nd:YAG laser beam on IR filter[J].High Power Laser and Particle Beams,2002,14(5):677-680.
Authors:YUAN Yong hua    LIU Song hao  SUN Cheng wei  LUO Fu  FAN Zheng xiu  LIAO Chang jun  HU Hai yang
Institution:1. Institute of Fluid Physics, CAEP, P.O.Box 919 113, Mianyang 621900, China;2. Institute of Quantum Electronics, South China Normal University, Guangzhou 510631, China;3. Shanghai Institute of Optics and Fine Mechanics, the Chinese Academy of Sciences,P.O.Box 800 211, Shanghai 201800, China
Abstract:The film structure determined temperature and standing wave field's characters which formed in laser irradiated optical thin film is presented, the temperature and standing wave fields is calculated for IR filter as an example. The research on damage characters in laser irradiated IR filter is proposed with 1.06μm Q switched Nd:YAG laser with pulse duration of 10ns and spot diameter of 0.61mm. From the analysis to the laser damaged IR filter, it is discovered that the initial filter damage did occurr in the inner layer, thus the experiment validated the calculated result of temperature and standing wave fields existed in filter. It is valuable to improve the IR filter's hardness against laser.
Keywords:laser irradiation effect  IR filter  optical film  temperature field  standing wave field  laser damage
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