光学学报, 2014, 34 (1): 0131003, 网络出版: 2014-01-02   

光学薄膜特性的锥角效应数值分析

Numerical Analysis of Cone Angle Effect of Optical Thin Films Characteristics
作者单位
天津津航技术物理研究所,天津市薄膜光学重点实验室, 天津 300192
摘要
建立非平行光入射多层膜的模型,给出了在圆形光束锥角入射时的薄膜特性表达式,对三类典型光学薄膜即多腔滤光片、非偏振分光薄膜和非偏振截止滤光薄膜的特性进行了数值实验。研究结果表明:随着光束入射锥角的增加,多腔滤光片的影响是中心波长向短波方向移动,透射率下降和通带形状退化;非偏振分光薄膜的s和p偏振透射率增加,宽带波纹度增加;非偏振截止滤光薄膜的通带透射率出现周期振荡,s偏振的通带波纹度大于p偏振,通带波纹度总体具有增加的趋势,过渡区的陡度具有变大的趋势。
Abstract
Model of non-parallel light incident multilayer is established. Expressions of film characteristics are given for the case that the incident light beam has a circular cone angle. Numerical experiments are done on the properties of three kinds of typical optical thin films such as multi-cavity filter, non-polarization beam splitter and non-polarization cutoff filter. The results show that as the cone angle of incident light increases, the center wavelength moves to short-wave for the multi-cavity filter, and the transmittance and pass band get worse. The transmittance and waviness increase for both of s and p polarization in non-polarization beam splitter. For non-polarization cutoff filter, the transmittance in pass band shows periodic oscillation, the waviness of s polarization is larger than that of p polarization. There is an increasing trend overall for waviness, in addition the gradient of the transition region is growing.

刘华松, 王利栓, 刘丹丹, 姜承慧, 姜玉刚, 孙鹏, 季一勤. 光学薄膜特性的锥角效应数值分析[J]. 光学学报, 2014, 34(1): 0131003. Liu Huasong, Wang Lishuan, Liu Dandan, Jiang Chenghui, Jiang Yugang, Sun Peng, Ji Yiqin. Numerical Analysis of Cone Angle Effect of Optical Thin Films Characteristics[J]. Acta Optica Sinica, 2014, 34(1): 0131003.

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