光学学报, 2007, 27 (10): 1896, 网络出版: 2007-10-24   

光学介质薄膜优化的宽带消色差λ/4相位延迟器

Thin-Film-Optimized Broadband Achromatic Quarter-Wave Phase Retarder
作者单位
曲阜师范大学激光研究所, 曲阜 273165
摘要
根据全反射相变理论设计了菲涅耳菱体型相位延迟器延迟量对入射角变化不敏感的结构角。根据薄膜的偏振效应,从薄膜的特征矩阵出发,通过在菱体的两个全反射面蒸镀光学介质膜的方法拓宽了菲涅耳菱体型相位延迟的消色差宽度。在ML_EB900型镀膜机上适当控制沉积条件制备了消色差相位延迟膜,实验测试结果表明:在530~700 nm的波长范围内,可以获得90°的相位延迟量,且最大偏差小于0.7°。
Abstract
Based on the total-reflection phase transformation theory, the Fresnel rhomb retarder is obtained with a structure angle with which the phase retardation is insensitive to the angle of incidence. According to thin film polarization effect and eigenmatrix, the Fresnel retarder's achromatic width is expanded by evaporating dielectric membrane in two total-reflection surfaces of the rhomb. Using the ML_EB900 film coating machine, the rhomb achromatic phase delay membrane is fabricated with appropriate deposition condition. The experimental result indicated, in 530~700 nm wavelength ranges, 90° phase retardation and maximum deviation within 0.7° were obtained.
参考文献

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闫斌, 吴福全, 郝殿中, 张旭, 毕佳, 郑萌萌. 光学介质薄膜优化的宽带消色差λ/4相位延迟器[J]. 光学学报, 2007, 27(10): 1896. 闫斌, 吴福全, 郝殿中, 张旭, 毕佳, 郑萌萌. Thin-Film-Optimized Broadband Achromatic Quarter-Wave Phase Retarder[J]. Acta Optica Sinica, 2007, 27(10): 1896.

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