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  • Received: Jul. 20, 2020

    Accepted: Sep. 4, 2020

    Posted: Dec. 3, 2020

    Published Online: Dec. 18, 2020

    The Author Email: Bing Lei (cslb2017@163.com)

    DOI: 10.3788/COL202119.021201

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    Chao Gao, Bing Lei. Spatially modulated polarimetry based on a vortex retarder and Fourier analysis[J]. Chinese Optics Letters, 2021, 19(2): 021201

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Chinese Optics Letters, Vol. 19, Issue 2, 021201 (2021)

Spatially modulated polarimetry based on a vortex retarder and Fourier analysis

Chao Gao and Bing Lei*

Author Affiliations

  • College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China

Abstract

We report a spatially modulated polarimetry scheme by using a zero-order vortex half-wave retarder (ZVHR) and a spatial Fourier analysis method. A ZVHR is employed to analyze the input polarized light and convert it into a vectorial optical field, and an analyzer is set after the ZVHR to form an hourglass intensity pattern due to the spatial polarization modulation. Then, the input light’s Stokes parameters can be calculated by spatial Fourier analysis of the hourglass pattern with a single shot. The working principle of the polarimeter has been analyzed by the Stokes–Mueller formalism, and some quantitative measuring experiments of different polarization states have been demonstrated. The experimental results indicate that the proposed polarimeter is accurate, robust, and simple to use.

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