| 利用1064nm激光预处理提高pickoff镜损伤阈值 |
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| 引用本文： | 黄进,赵松楠,吕海兵,蒋晓东,袁晓东,郑万国.利用1064nm激光预处理提高pickoff镜损伤阈值[J].强激光与粒子束,2007,19(5):728-732. |
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| 作者姓名： | 黄进 赵松楠 吕海兵 蒋晓东 袁晓东 郑万国 |
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| 作者单位： | 中国工程物理研究院激光聚变研究中心 四川绵阳621900 |
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| 基金项目： | 国家863计划项目资助课题 |
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| 摘 要： | 激光预处理是提高光学元件损伤阈值的有效方法之一。利用输出1064 nm基频激光的SAGA激光器,采用光栅刻线式扫描的方式对镀多层高反物理膜的pickoff镜进行了能量周期递增的预处理,验证激光预处理对其损伤阈值的提高效果。结果表明:零几率损伤阈值平均提高38.8%,而50%几率损伤阈值提高了7.6%,经过激光预处理后pickoff镜抗损伤能力较处理前有了一定提高。
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| 关 键 词： | 激光技术 激光预处理 光栅扫描 损伤阈值 pickoff镜 |
| 文章编号： | 1001-4322（2007）05-0728-05 |
| 修稿时间： | 2007-01-112007-03-29 |
Damage-threshold increase of pickoff optics using 1 064 nm wavelength laser |
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| HUANG Jin, ZHAO Song-nan, LU Hai-bing, JIANG Xiao-dong, YUAN Xiao-dong, ZHENG Wan-guo.Damage-threshold increase of pickoff optics using 1 064 nm wavelength laser[J].High Power Laser and Particle Beams,2007,19(5):728-732. |
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| Authors: | HUANG Jin ZHAO Song-nan LU Hai-bing JIANG Xiao-dong YUAN Xiao-dong ZHENG Wan-guo |
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| Abstract: | Laser pre-treatment is an efficient means to increase damage-thresholds of optics.In order to validate the effect of laser pre-treatment on pickoff optics and study its value in engineering application,1 064 nm YLF laser was used to raster scan pickoff optics with high-reflection physics multilayer coating by means of power increase by degrees periodicity.The result was that zero probability damage-thresholds increased 38.8% and 50% probability damage-thresholds increased 7.6%,damage resistance of pickoff optics was evidently enhanced through pre-treatment. |
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| Keywords: | Laser technique Laser pre-treatment Raster scanning Damage-thresholds Pickoff optics |
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