| 从薄膜波导传播衰减的角度研究光学薄膜的损耗:(Ⅰ)理论分析 |
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| 引用本文： | 刘旭,唐晋发,E.Pelletier.从薄膜波导传播衰减的角度研究光学薄膜的损耗:(Ⅰ)理论分析[J].光学学报,1992,12(4):348-352. |
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| 作者姓名： | 刘旭 唐晋发 E.Pelletier |
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| 作者单位： | 浙江大学光仪系，浙江大学光仪系，ENSPM Marseille 13397，France 杭州310027，杭州310027 |
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| 摘 要： | 本文从理论上分析了光学薄膜中的三种基本缺陷:折射率消光系数、表面粗糙度以及折射率不均匀性对薄膜内导波传播衰减的影响.基于这些缺陷对光学薄膜内不同导模传播衰减作用的不同,提出了一种区分薄膜中的吸收与散射损耗的方法.
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| 关 键 词： | 光损耗 薄膜 波导 光散射 光吸收 |
| 收稿时间： | 1991/3/14 |
Studies on optical thin film loss from the analysis of the attenuations of guided waves: (I) theoretical analysis |
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| Liu Xu AND TANG JINFA.Studies on optical thin film loss from the analysis of the attenuations of guided waves: (I) theoretical analysis[J].Acta Optica Sinica,1992,12(4):348-352. |
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| Authors: | Liu Xu AND TANG JINFA |
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| Abstract: | The influences of extinction coefficient of refractive index, roughness of the interfaces and index heteogeneities of an optical thin film waveguide on the attenuations of guided modes are analysed theoretically in this paper. Based on the characteristics of the attenuation coefficients of diffioient modes due to these imperfaotion factors, a new method is proposed to seperate the absorption loss and scattering loss of the thin film. |
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| Keywords: | optical loss thin film waveguide scattering absorption |
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