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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Spectroscopic Stokes polarimetry based on Fourier transform spectrometer
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Spectroscopic Stokes polarimetry based on Fourier transform spectrometer

机译：基于傅立叶变换光谱仪的斯托克斯光谱偏振光谱法

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摘要

Two methods are proposed for measuring the spectroscopic Stokes parameters using a Fourier transform spectrometer. In the first method, it is designed for single point measurement. The parameters are extracted using an optical setup comprising a white light source, a polarizer set to 0 degrees, a quarter-wave plate and a scanning Michelson interferometer. In the proposed approach, the parameters are extracted from the intensity distributions of the interferograms produced with the quarter-wave plate rotated to 0 degrees, 22.5 degrees, 45 degrees and -45 degrees, respectively. For the second approach, the full-field and dynamic measurement can be designed based upon the first method with special angle design in a polarizer and a quarter-wave plate. Hence, the interferograms of two-dimensional detection also can be simultaneously extracted via a pixelated phase-retarder and polarizer array on a high-speed CCD camera and a parallel read-out circuit with a multi-channel analog to digital converter. Thus, a full-field and dynamic spectroscopic Stokes polarimetry without any rotating components could be developed. The validity of the proposed methods is demonstrated both numerically and experimentally. To the authors' knowledge, this could be the simplest optical arrangement in extracting the spectral Stokes parameters. Importantly, the latter one method avoids the need for rotating components within the optical system and therefore provides an experimentally straightforward means of extracting the dynamic spectral Stokes parameters. (C) 2014 Elsevier B.V. All rights reserved.
机译：提出了两种使用傅立叶变换光谱仪测量斯托克斯光谱参数的方法。第一种方法是为单点测量而设计的。使用包括白光源，设置为0度的偏振器，四分之一波片和扫描迈克尔逊干涉仪的光学装置提取参数。在提出的方法中，从四分之一波片分别旋转到0度，22.5度，45度和-45度产生的干涉图的强度分布中提取参数。对于第二种方法，可以基于第一种方法在偏振器和四分之一波片中设计特殊角度设计的全场和动态测量。因此，还可以通过高速CCD相机上的像素化​​相位延迟器和偏振器阵列以及具有多通道模数转换器的并行读出电路，来同时提取二维检测的干涉图。因此，可以开发没有任何旋转分量的全场和动态光谱斯托克斯偏振法。数值和实验证明了所提方法的有效性。据作者所知，这可能是提取光谱斯托克斯参数中最简单的光学装置。重要的是，后一种方法避免了旋转光学系统内组件的需要，因此提供了一种提取动态光谱斯托克斯参数的实验简单方法。 （C）2014 Elsevier B.V.保留所有权利。

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