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。
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 clone on the properties of three kinds of typical optical thin films such as polarization cutoff filter. The results show that as the multi-cavity filter, non-polarization beam splitter and non- 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.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2014年第1期309-313,共5页
Acta Optica Sinica
基金
国家自然科学基金重点项目(61235011)
国家重大科学仪器专项子项目(2012YQ04016405)
天津市自然科学青年基金(12JCQNIC01200)
天津市自然科学基金(13JCYBJC17300)
关键词
薄膜
入射光锥角
透射率
锥角效应
thin films~ cone angle of incident light~ transmittance~ cone angle effect
