| 连续激光辐照窄带滤光片软损伤研究 |
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| 引用本文： | 赵元安,金永浩,龚辉,邵建达,范正修,袁永华.连续激光辐照窄带滤光片软损伤研究[J].光电工程,2003,30(5):55-58. |
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| 作者姓名： | 赵元安 金永浩 龚辉 邵建达 范正修 袁永华 |
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| 作者单位： | 1. 中国科学院上海光学精密机械研究所,上海,201800
2. 中国工程物理研究院流体物理研究所,四川,绵阳,621900 |
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| 摘 要： | 利用YAG激光对ZnSe/MgF2窄带滤光片进行连续辐照研究,发现滤光片的通带发生了漂移, 严重时通带完全飘离使用波长,使其光学性能完全失效,即滤光片出现软损伤。根据实验结果和温度场分布,模拟了滤光片在连续激光辐照下的温度响应和光学性能失效过程,结果表明ZnSe材料的折射率温度梯度是引起软损伤的主要因素。
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| 关 键 词： | 窄带滤光片 激光辐照 软损伤 温度梯度 |
| 文章编号： | 1003-501X(2003)05-0055-04 |
| 收稿时间： | 2002/9/4 |
| 修稿时间： | 2002年9月4日 |
Study on CW Laser Induced Soft Damage of Narrow-Band Filters |
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| ZHAO Yuan-an,JIN Yong-hao,GONG Hui,SHAO Jian-da,FAN Zheng-xiu,YUAN Yong-hua.Study on CW Laser Induced Soft Damage of Narrow-Band Filters[J].Opto-Electronic Engineering,2003,30(5):55-58. |
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| Authors: | ZHAO Yuan-an JIN Yong-hao GONG Hui SHAO Jian-da FAN Zheng-xiu YUAN Yong-hua |
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| Affiliation: | ZHAO Yuan-an1,JIN Yong-hao1,GONG Hui1,SHAO Jian-da1,FAN Zheng-xiu1,YUAN Yong-hua2 |
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| Abstract: | Continuously irradiating ZnSe/MgF2 narrow-band filters with YAG laser, it is found that deviations have been appeared in transmission bands of filters and transmission bands entirely deviate from the used wavelengths in severe case. In this way the optical properties of the filters lose efficiency fully, i.e., soft damage of filter. Temperature response and losing efficiency process of optical properties of filters irradiated by CW laser are simulated according to the experimental results and the temperature field distributions. The experimental results show that the temperature gradient of refractive index for ZnSe is the main factor inducing soft damage. |
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| Keywords: | Narrow-band filter Laser irradiating functional damage Temperature gradient |
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