| 纳秒激光诱导熔石英光学玻璃的损伤增长 |
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| 引用本文： | 邱荣,王俊波,任欢,李晓红,施鹏程,刘浩,马平.纳秒激光诱导熔石英光学玻璃的损伤增长[J].强激光与粒子束,2012,24(5):1057-1062. |
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| 作者姓名： | 邱荣 王俊波 任欢 李晓红 施鹏程 刘浩 马平 |
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| 作者单位： | 1.西南科技大学 极端条件物质特性实验室, 四川 绵阳 621 000; |
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| 基金项目： | 国家自然科学基金委员会-中国工程物理研究院联合基金项日 |
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| 摘 要： | 利用Nd:YAG激光器研究了纳秒激光诱导熔石英光学玻璃的初始损伤及损伤增长,对比研究了损伤程度和损伤形貌随激光波长、能量密度、脉冲数及位置的变化规律，并对损伤机制进行了分析和讨论。研究结果表明:初始损伤受损伤先驱的物理化学性质和激光参数的影响，而损伤增长规律与初始损伤程度、激光参数和位置有关；后表面的损伤随脉冲数的增加呈指数关系增长，前表面则呈线性关系；裂纹的产生及其在后续脉冲辐照下的发展是后表面损伤增长的主要原因，高温等离子体表面刻蚀是前表面损伤增长的主要原因
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| 关 键 词： | 激光诱导损伤 熔石英光学玻璃 初始损伤 损伤增长 损伤形貌 |
| 收稿时间： | 2011/5/30 |
Growth of laser-induced damage in fused silica under nanosecond laser irradiation |
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| Qiu Rong
,
Wang Junbo
,
Ren Huan
,
Li Xiaohong
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Shi Pengcheng
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Liu Hao
,
Ma Ping.Growth of laser-induced damage in fused silica under nanosecond laser irradiation[J].High Power Laser and Particle Beams,2012,24(5):1057-1062. |
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| Authors: | Qiu Rong Wang Junbo Ren Huan Li Xiaohong Shi Pengcheng Liu Hao Ma Ping |
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| Affiliation: | 1.Laboratory for Extreme Conditions Matter Properties,Southwest University of Science and Technology,Mianyang 621000,China;2.Graduate School of China Academy of Engineering Physics,Beijing 100088,China;3.Research Center of Laser Fusion,CAEP,P.O.Box 919-988,Mianyang 621900,China |
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| Abstract: | The paper studies the initiated damage morphology and the subsequent damage growth on fused silica’s exit-surface and input-surface in air under nanosecond laser irradiation at 1 064 nm and 532 nm. The results demonstrate a significant dependence of the initiated damage on laser parameters and surface defects characters, and of the damage growth on the laser wavelength, location and fluence. Exponential growth behavior appears for exit-surface and linear growth one for input-surface in the lateral side of the damage site with the increase of shot number. Possible reasons for the observed initiated damages and damage growth behaviors are discussed. |
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| Keywords: | laser-induced damage fused silica initiated damage damage growth damage morphology |
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