| 高斯型粗糙面光透射的微扰法研究 |
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| 引用本文： | 田炜. 高斯型粗糙面光透射的微扰法研究[J]. 科学技术与工程, 2012, 12(23): 5757-5760 |
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| 作者姓名： | 田炜 |
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| 作者单位： | 延安大学物理与电子信息学院;榆林市环境监测总站 |
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| 基金项目： | 陕西省教育厅科研专项项目、延安市科技计划项目 |
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| 摘 要： | 运用微扰法研究了介质粗糙面的光波透射问题，结合高斯粗糙功率谱导出了不同极化状态下透射系数的数学表达式。数值计算得到了透射系数随透射波的散射系数的变化曲线，讨论了粗糙面高度起伏均方根、相关长度、介质介电常数、入射波频率对散射系数的影响。得到了透射系数的基本特征和随波长变化特征。
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| 关 键 词： | 光波透射；高斯型粗糙面；微扰法 |
| 收稿时间： | 2012-05-02 |
| 修稿时间： | 2012-05-02 |
Study on optical wave transmission from Gaussian rough surface using the small perturbation method |
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| Tian Wei. Study on optical wave transmission from Gaussian rough surface using the small perturbation method[J]. Science Technology and Engineering, 2012, 12(23): 5757-5760 |
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| Authors: | Tian Wei |
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| Affiliation: | 2(College of Physics and Electronic Information,Yan’an University1,Yan’an 716000,P.R.China; Environmental Monitoring Station in Yulin City2,Yulin 719000,P.R.China) |
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| Abstract: | The optical wave transmission from dielectric rough surface is studied using the small perturbation method, the mathematical expression of transmission coefficient for different polarizations is derived with Gaussian rough surface power spectrum, The curves of the transmission coefficient with varying of the scattering angle of transmission wave are obtained by the numerical calculation. The influences of the height root mean square, correlation length of rough surface, the permittivity of medium, the length of incident wave on the transmission coefficient are discussed. The basic characteristics and the characteristics with the length of incident wave of the transmission coefficient are obtained. |
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| Keywords: | optical wave transmission Gaussian rough surface the small perturbation method |
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