| 强激光对铜反射镜的热破坏效应 |
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| 引用本文： | 刘成海 袁诃. 强激光对铜反射镜的热破坏效应[J]. 强激光与粒子束, 1990, 2(4): 461-466 |
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| 作者姓名： | 刘成海 袁诃 |
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| 作者单位： | 北京应用物理与计算数学研究所(刘成海，袁河)，北京应用物理与计算数学研究所(裴文兵) |
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| 摘 要： | 本文给出了一个激光对光学材料表面热破坏效应的简化物理模型及数值研究结果。所得到的铜反射镜热破坏阈值与激光脉宽的关系与实验和理论符合很好。提出了反射镜后表面外冷却临界厚度的概念,并得到一个关于多脉冲积累效应的幂定标关系。
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| 关 键 词： | 激光 热破坏 铜 反射镜 破坏阈值 |
LASER -INDUCED THERMAL DAMAGE OF COPPER REFLECTION M IRRORS |
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| Liu Chenghai,Yuan He,and Pei Wenbing Institute of Applied Physics and Computational Mathematics,Beijing. LASER -INDUCED THERMAL DAMAGE OF COPPER REFLECTION M IRRORS[J]. High Power Laser and Particle Beams, 1990, 2(4): 461-466 |
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| Authors: | Liu Chenghai Yuan He and Pei Wenbing Institute of Applied Physics Computational Mathematics Beijing |
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| Abstract: | A physical model for laser-induced thermal damage of optical surfaces has been developed and used to study damage thresholds, cooling and accumulative effects The computed dependence of damage thresholds on laser pulse duration is in agreement with experimental and theoritical results reasonably. A concept about critical cooling thickness of mirrors has been suggested , and a scaling law of multi-pulse accumulative effects has been obtained. |
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| Keywords: | laser-induced thermal damage copper reflection mirror damage threshold critical cooling thickness accumulative effect. |
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