| 光学材料亚表面缺陷处强激光电磁场分布的3维模拟 |
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| 引用本文： | 李莉, 雷雨, 肖邵球, 等. 光学材料亚表面缺陷处强激光电磁场分布的3维模拟[J]. 强激光与粒子束, 2009, 21(06). |
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| 作者姓名： | 李莉 雷雨 肖邵球 袁晓东 蒋晓东 郑万国 花金荣 祖小涛 |
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| 作者单位： | 1.电子科技大学 应用物理系, 成都 61 0054;;;2.中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621 900 |
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| 摘 要： | 利用时域有限差分法求解麦克斯韦旋度方程，研究了光学材料表面缺陷对入射激光场的调制作用，建立了亚表面缺陷的3维模型。以长方体表面缺陷为例，对缺陷附近的光场分布进行了3维数值计算，给出了电场强度3维分布图和缺陷不同尺寸时的最大电场强度。研究表明，相对于2维简化情况，3维表面缺陷对强激光电磁场的调制作用更加明显。
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| 关 键 词： | 激光损伤 亚表面缺陷 电磁场时域有限差分法 光场调制 3维模拟 |
Three-dimensional numerical simulation of light intensity distribution in vicinity of subsurface defect |
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| li li, lei yu, xiao shaoqiu, et al. Three-dimensional numerical simulation of light intensity distribution in vicinity of subsurface defect[J]. High Power Laser and Particle Beams, 2009, 21. |
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| Authors: | li li lei yu xiao shaoqiu yuan xiaodong jiang xiaodong zheng wanguo hua jinrong zu xiaotao |
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| Affiliation: | 1. Institute of Physics and Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China;;;2. Research Center of Laser Fusion,CAEP,P.O.Box 919-988-5,Mianyang 621900,China |
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| Abstract: | In this paper, the modulation of light field by the subsurface defects is investigated in detail by solving Maxwell equations employing the finite-difference time-domain method. Meanwhile, the model of three-dimensional defect is set up. Taking cuboid defect as an example, the three-dimensional electromagnetic intensity distribution around the defect is simulated. The maximum electronic field intensity of different defect three dimensional numerical simulation is given. The results show modulation of three-dimensional defect to light intensity is more distinct than that of two-dimensional defect. |
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| Keywords: | laser induced damage subsurface defect finite-difference time-domain method electric field modulation three dimensional numerical simulation |
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