| 四区域法消除偏振棱镜缺陷对波片相位延迟测量的影响 |
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| 引用本文： | 缪洁,林强,张艳丽,张燕,杨朋千,朱健强.四区域法消除偏振棱镜缺陷对波片相位延迟测量的影响[J].光学学报,2008,28(10):1938-1941. |
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| 作者姓名： | 缪洁 林强 张艳丽 张燕 杨朋千 朱健强 |
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| 作者单位： | 中国科学院上海光学精密机械研究所高功率激光物理联合实验室,上海,201800 |
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| 摘 要： | 在起偏器-待测波片-检偏器系统基础卜提出一种四区域测量波片相位延迟量的方法.调整待测波片和检偏器的方位角,获得相应的四组光强值,通过线性运算得到待测波片的相位延迟量,完全消除了起偏器和检偏器不完全消光带来的误差.由于测量系统中不存在标准波片或其他相位调制元件,允许测量波长仅受偏振棱镜和探测器的限制,因此四区域法可适用于很大波长范围内的波片测量.以λ/4波片为例,理论分析了测量系统利用四区域测量法后的仪器误差为σφ≤士3.49065×10-3rad(约0.2°),精度比原算法提高约1个数量级.实验验证了四区域法能有效提高系统精度.
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| 关 键 词： | 光学测量 相位延迟 四区域法 波片 元件缺陷 |
| 收稿时间： | 2008/1/22 |
Four-Zone Method to Eliminate Influence of Polarizing Prism's Imperfections on Measurement of Phase Retardation of Wave Plates |
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| Miao Jie,Lin Qiang,Zhang Yanli,Zhang Yan,Yang Pengqian,Zhu Jianqiang.Four-Zone Method to Eliminate Influence of Polarizing Prism's Imperfections on Measurement of Phase Retardation of Wave Plates[J].Acta Optica Sinica,2008,28(10):1938-1941. |
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| Authors: | Miao Jie Lin Qiang Zhang Yanli Zhang Yan Yang Pengqian Zhu Jianqiang |
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| Institution: | Joint Laboratory on High Power Laser Physics;Shanghai Institute of Optics and Fine Mechanics;Chinese Academy of Sciences;Shanghai 201800;China |
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| Abstract: | Four-zone method to measure the phase retardation of wave plate is put forward based on the polarizer-wave plate-analyzer system.Four sets of light intensity were collected by adjusting azimuth angles of measured wave plate and analyzer.The phase retardation of the wave plate is figured out with linear calculation.This method eliminates the error caused by polarizer and analyzer imperfections completely in phase retardation measurement.No standard wave plate or other phase modulation instruments are necessa... |
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| Keywords: | optical measurement phase retardation four-zone method wave plate device imperfection |
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