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Error analysis of channeled Stokes polarimeters

机译:通道斯托克斯偏振仪的误差分析

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摘要

This work presents an analysis of passive polarimeters with spectral channeling, referred to as Stokes channeled spectropolarimeters (SCS). The SCS setup comprises two thick birefringent retarders, followed by a horizontal linear polarizer. The simulation of these polarimeters and two extraction methods for the incident Stokes vector is presented as well. The effects of different retarders thickness ratios, the global retardance factor, retardance errors, axes alignment error, and Gaussian noise on root mean square (RMS) errors of the recovered Stokes parameters are described. Furthermore, two different, previously published data extraction methods are presented and compared. We found the best polarimeter configurations from the cases studied, and our results suggest that a mixed extraction process, using different extraction methods for different Stokes parameters, could give better results by reducing RMS errors by about a factor of 5. It is worth mentioning that although calibration is needed to account for the effect of errors, this is out of the scope of this work. (C) 2021 Optical Society of America
机译:这项工作提出了一种分析被动偏振与光谱通道,被称为斯托克斯通道分光偏振仪(SCS)。SCS设置包括两个厚双折射缓凝剂,然后是一个水平线性偏振器。文中还对这些偏振仪进行了仿真,并给出了两种提取斯托克斯矢量的方法。描述了不同延迟器厚度比、整体延迟因子、延迟误差、轴对准误差和高斯噪声对恢复斯托克斯参数均方根误差的影响。此外,本文还介绍并比较了两种不同的数据提取方法。我们从所研究的案例中找到了最佳的旋光仪配置,我们的结果表明,混合提取过程,针对不同的斯托克斯参数使用不同的提取方法,可以通过将RMS误差减少约5倍来获得更好的结果。值得一提的是,尽管需要进行校准以考虑误差的影响,但这超出了本工作的范围。(2021)美国光学学会

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  • 来源
    《Applied optics》 |2021年第16期|共8页
  • 作者单位

    Univ Nacl Autonoma Mexico Inst Ciencias Aplicadas &

    Tecnol Circuito Exterior S-N Ciudad Univ Mexico City 04510 DF Mexico;

    Univ Nacl Autonoma Mexico Inst Ciencias Aplicadas &

    Tecnol Circuito Exterior S-N Ciudad Univ Mexico City 04510 DF Mexico;

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  • 正文语种 eng
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