| CO2激光扫描辐照修复熔石英表面损伤 |
| |
| 引用本文： | 李熙斌, 刘春明, 王海军, 等. CO2激光扫描辐照修复熔石英表面损伤[J]. 强激光与粒子束, 2012, 24: 1757-1760. |
| |
| 作者姓名： | 李熙斌 刘春明 王海军 袁晓东 贺少勃 向霞 郑万国 |
| |
| 作者单位： | 1.中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621 900;;;2.电子科技大学 物理电子学院, 成都 61 0054 |
| |
| 摘 要： | 采用振镜系统结合10.6 m的CO2激光，对熔石英表面损伤点进行辐照，成功地修复了直径500 m的大尺寸损伤点，损伤修复后表面无烧蚀残留，损伤内部完全愈合，无气泡和残余裂纹。和定点修复方式相比，这种修复具有修复尺度大、面形影响区域小、应力分布范围小的优势。80%扫描辐照修复的损伤点的初始损伤阈值恢复甚至超过了基底的初始损伤阈值。
|
| 关 键 词： | 振镜系统 CO2激光 定点修复 损伤阈值 |
Mitigating laser induced damage in fused silica with CO2 laser |
| |
| Li Xibin, Liu Chunming, Wang Haijun, et al. Mitigating laser induced damage in fused silica with CO2 laser[J]. High Power Laser and Particle Beams, 2012, 24: 1757-1760. |
| |
| Authors: | Li Xibin Liu Chunming Wang Haijun Yuan Xiaodong He Shaobo Xiang Xia Zheng Wanguo |
| |
| Affiliation: | 1. Research Center of Laser Fusion,CAEP,P.O.Box 919-988-5,Mianyang 621900,China;;;2. School of Physical Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China |
| |
| Abstract: | Laser induced damage sites in fused silica were irradiated by a galvanometer scanned CO2 laser. Most damage sites are completely repaired (no ablation deposits, air bubbles and cracks) and the largest is 500 m in diameter. Compared with localized mitigation, scanning mitigation can repair larger-sized damage, and bring about smaller surface deformation and lower thermal stress. The damage testing at 355 nm shows that, 80% of the mitigated damage sites can withstand the laser power density up to the initial damage threshold of the substrate. |
| |
| Keywords: | galvanometer system co2 laser localized mitigation damage threshold |
|
| 点击此处可从《强激光与粒子束》浏览原始摘要信息 |
|
点击此处可从《强激光与粒子束》下载全文 |
|
