结构角对冰洲石Wollaston棱镜分束角温度效应的影响  

The influence of temperature on the divergence angles of the calcite wollaston prism by structure angle

作　　者：赵爽[1] 吴福全[2] 王海峰[2] 李秀珍[1] 王进喜[1] 赵昕[1] 仲伟纲[1] 薛美[1] 

机构地区：[1]泰山医学院放射学院,山东泰安271016 [2]曲阜师范大学激光研究所,山东曲阜273165

出　　处：《光电子．激光》2008年第5期599-602,共4页Journal of Optoelectronics·Laser

摘　　要：为了了解温度变化对不同结构角的冰洲石晶体Wollaston棱镜分束角的影响,首先明确了棱镜的结构角和晶体中o光、e光的主折射率是决定棱镜分束角的两个因素;然后从温度对这两个因素的影响出发,从理论上对不同结构角冰洲石晶体Wollaston棱镜o光、e光分束角的温度效应进行了研究,结果表明:对于不同结构角的棱镜,随温度的升高,它们的两分束角均在减小,但o光分束角减小的幅度要比e光大得多;大结构角棱镜其分束角受温度的影响要比小结构角的大。建立了实验测试系统,实验测试结果与理论分析相吻合。The structural angle and main refractive indices as two key factors were proposed to understanding the temperature influence on the divergence angles of the Wollaston prism. The temperature influence on the divergence angles of calcite crystal Wollaston prism with structure angle is studied theoretically. The results show that divergence angles decrease with increasing temperature,but the divergence angle of o-light decrease more quickly than that of e-light. The temperature influence on the divergence angle of large structure angle is greater than that of small structure angle. The testing system was established to verify the above results,and the experimental results were agreed well with the theoretical analysis.

关 键 词：晶体光学 冰洲石晶体 WOLLASTON棱镜 结构角 分束角 温度效应 

分 类 号：O436.3[机械工程—光学工程]