| 光学薄膜的分层界面散射模型 |
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| 引用本文： | 侯海虹,沈健,沈自才,邵建达,易葵,范正修.光学薄膜的分层界面散射模型[J].光学学报,2006,26(7):102-1106. |
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| 作者姓名： | 侯海虹 沈健 沈自才 邵建达 易葵 范正修 |
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| 作者单位： | 1. 中国科学院上海光学精密机械研究所,上海,201800;中国科学院研究生院,北京,100039
2. 中国科学院上海光学精密机械研究所,上海,201800 |
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| 摘 要： | 提出了一种计算光学介质膜系表面总积分散射(TIS)的理论模型。该模型认为,介质膜系粗糙的膜层界面和表面为微观结构不均匀的微薄过渡区;过渡区可用折射率为不同常量的层数足够多的均匀子层来代替,同时这些均匀子层的折射率变化满足指数函数的分布规律。利用矩阵法对积分散射的表达式进行了推导。对于电子束蒸发方法在K9玻璃上沉积的ZrO2单层膜,分层界面散射模型对积分散射的理论计算值要比非相关表面散射模型的计算值更加符合总积分散射仪的实验测量结果。
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| 关 键 词： | 薄膜光学 表面散射模型 矩阵法 总积分散射 |
| 文章编号： | 0253-2239（2006）07-1102-5 |
| 收稿时间： | 2005-08-19 |
| 修稿时间： | 2005-12-10 |
Stratified-Interface Scattering Model for Multilayer Optical Coatings |
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| Hou Haihong,Shen Jian,Shen Zicai,Shao Jianda,Yi Kui,Fan Zhengxiu.Stratified-Interface Scattering Model for Multilayer Optical Coatings[J].Acta Optica Sinica,2006,26(7):102-1106. |
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| Authors: | Hou Haihong Shen Jian Shen Zicai Shao Jianda Yi Kui Fan Zhengxiu |
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| Institution: | 1 Shanghai Institute of Optics and Fine Mechanics, the Chinese Academy of Sciences, Shanghai 201800; 2 Graduate School of the Chinese Academy of Sciences, Beijing 100039 |
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| Abstract: | A theoretical model calculating the surface total integrated scattering(TIS) of multilayer optical coatings is presented.The new model assumes that the rough interface and surface of the coatings are very thin zones with inhomogeneous micro constructure,which can be substituted by adequate number of homogeneous sub-layers,refractive indexes of which are constant and meet the exponential distribution.The formula of TIS is deduced by using the matrix method.For ZrO_2 coatings deposited on K9 glasses by the electronic beam evaporation method,the TIS result calculated by the new model is in better conformity with the measured value by the scatterometer than that by the uncorrelated surface roughness model. |
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| Keywords: | thin film optics surface scattering model matrix method total integrated scattering |
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