| 基于最小二乘拟合的波片相位延迟测量 |
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| 引用本文： | 侯俊峰,王东光,邓元勇,张志勇,孙英姿.基于最小二乘拟合的波片相位延迟测量[J].光学学报,2011(8):104-109. |
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| 作者姓名： | 侯俊峰 王东光 邓元勇 张志勇 孙英姿 |
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| 作者单位： | 中国科学院国家天文台中国科学院太阳活动重点实验室; |
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| 基金项目： | 国家自然科学基金(10778723,10878016,10803012)资助课题 |
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| 摘 要： | 提出一种精密测量波片相位延迟的新方法.将待测波片置于起偏器和检偏器之间,通过步进电机控制波片匀速旋转,基于最小二乘法拟合出射光强随波片方位角变化的曲线,进而得到波片延迟.根据上述原理,建立了一套波片延迟测量系统,并分析了系统的稳定性、可测量的延迟范围、接收器件的非线性效应、系统误差源这4个影响测量精度的主要方面.结果表...
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| 关 键 词： | 测量 相位延迟 最小二乘法 波片 |
Phase Retardation Measurement with Least Square Fitting Method |
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| Hou Junfeng Wang Dongguang Deng Yuanyong Zhang Zhiyong Sun Yingzi.Phase Retardation Measurement with Least Square Fitting Method[J].Acta Optica Sinica,2011(8):104-109. |
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| Authors: | Hou Junfeng Wang Dongguang Deng Yuanyong Zhang Zhiyong Sun Yingzi |
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| Institution: | Hou Junfeng Wang Dongguang Deng Yuanyong Zhang Zhiyong Sun Yingzi(Key Laboratory of Solar Activity,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China) |
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| Abstract: | A new method for measuring the retardation of waveplates with high precision is brought forward.The measured waveplate is placed between polarizer and analyzer,and rotates uniformly under the control of stepper motor.The phase retardation can be calculated with the least square method fitting the curve of emergent light intensity variation with the azimuth angle of waveplate.Based on the analysis,an experimental system is established to measure the retardation.Four parts,including stability of the system,re... |
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| Keywords: | measurement phase retardation least square method waveplate |
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