摘要
分光膜都是倾斜使用的,不可避免地存在S和P 2个偏振分量的分离。在许多实际应用中,这是一个迫切需要解决的刺手难题。基于Thelen和Costich理论,选择初始膜系材料和结构,并在N eed le合成法与Con jugate graduate精炼法的帮助下,采用全介质材料设计了532 nm,633 nm和1 315 nm三波长宽角度消偏振平板型分光膜,空气中入射角的变化范围为45°±5°。结果表明:在宽角度范围内,此膜系在(532±10)nm,(633±10)nm和(1 315±10)nm范围的偏振分离都能比较好地满足消偏振要求。
Since the light-splitting film is always tilted, the separation between s- and pcomponent is inevitable. The separation has become a difficult problem to be solved in many applications. The material and structure of original film system were selected according to Costich and Thelen theories. A wide-angle depolarization flat-plate light-splitting film for three wavelengths （532 nm, 633 nm and 1 315 nm） was designed with all-dielectric materials by Needle synthesis method and Conjugate graduate refine method. The variation range of the incident angle in the air is 45°±5°. The design and analysis results show that the polarization separation of the film system in the spectral range of （532±10）nm, （633±10）nm and （1 315±10） nm can meet the requirement of the depolarization in the wide-angle range.
出处
《应用光学》
CAS
CSCD
2008年第4期537-541,共5页
Journal of Applied Optics
关键词
全介质材料
宽角度
消偏振
平板型分光膜
all-dielectric material
wide angle
depolarization
flat-plate light-splitting film
