冰洲石一玻璃组合超高透偏光棱镜  

Combinatina of iceland and glass super high transmittance of O light polarizing prism

作　　者：吴福全[1] 任树锋[1] 唐恒敬[1] 赵培[1] 

机构地区：[1]曲阜师范大学激光所,山东曲阜273165

出　　处：《激光杂志》2006年第1期29-29,31,共2页Laser Journal

摘　　要：为了既节省稀有昂贵的冰洲石晶体材料,又尽量提高偏光棱镜的透射比,本文采用冰洲石晶体与光学玻璃组合的方法,给出一种以布儒斯特角入射来提高o光透射比的偏光棱镜的设计。样品由ZBaF3玻璃与冰洲石晶体通过大折射率液态胶合剂溴代萘胶合而成;通过实验测试,该形式棱镜的透射比均在95%以上,消光比优于10。由该棱镜的理论设计和性能测试两方面都证明:冰洲石晶体与光学玻璃组合形式的偏光棱镜在一般情况下完全可以取代纯冰洲石晶体材料的偏光棱镜。In order to save the rare iceland and increase the transmittance of polarizing prism, we design a type of polarizing prism combination of iceland and glass. The prism have super high transmittance of o light when the incident angle is Brewster＇s angle. The instance is made of ZBaF3 glass and iceland, between which is C10H7Br. The experiment indicate that the transmittance of the prism is more than 95%,and the extinction ratio is better than 10^-5. It can be approved that the prism can replacement the prism which is only made of iceland in general by the theory and experiment.

关 键 词：偏振光学 超高透偏光棱镜 光学玻璃 透射比 消光比 

分 类 号：O436.3[机械工程—光学工程]