三元复合式消色差λ/4波片的优化设计  

Optimizational Design Scheme for Three-in-One CompositeAchromatic λ/4 Wave-Plate

作　　者：郑春红[1] 宋连科[1] 梁荣饶 

机构地区：[1]曲阜师范大学激光研究所,山东曲阜273165 [2]青岛市第三中学物理组,山东青岛266041

出　　处：《中国激光》2004年第6期662-664,共3页Chinese Journal of Lasers

摘　　要：复合消色差波片 ,因其延迟量在一定波长范围内不随波长变化 ,克服了常规延迟片只能用于单一波长的缺点而被广泛应用到通信、生物、地质、航空、航天、海洋等领域。根据复合波片理论 ,完成了同种材料三元复合式消色差 λ/ 4波片的设计理论 ;推导出消色差延迟片延迟量随波长变化的理论曲线 ;进而在平板型三元复合式消色差λ/ 4波片的设计基础上提出了一种优化设计方案。理论证明 ,依据此方案根据具体的使用要求 ,通过精确调整复合角度 ,可使波片的消色差范围在相同延迟偏差下拓宽 130～ 14 0nm ,消色差精度也能得到相应的提高。为进一步拓宽消色差范围、提高复合波片的消色差性能奠定了很好的理论基础 ,而且技术操作简练可行 ,具有一定的实用价值。The achromatic wave-plates are widely used in communication, biology, geological, aviation and ocean because their retardation are not vary with wavelength unlike the common ones. This article gives the designed theory for the identical material three-in-one composite achromatic λ/4 wave-plate according to composite wave-plate theory, generalizes the theoretical curve between retardation and wavelength, then a optimum design scheme is put forward based on flat-plate three-in-one composite achromatic wave-plate in response to theoretical curve of retardation. Theory analysis shows that this design can improve achromatic range from 130 to 140 nm which is longer than common ones under the same delay deviation, and advances its achromatic accuracy by adjusting composite angle exactly for specific operating requirements.

关 键 词：物理光学 消色差 双折射 复合波片 复合角 延迟偏差 

分 类 号：O436.3[机械工程—光学工程]