Compact and static Fourier transform imaging spectropolarimeters using birefringent elements

Mu, Tingkui; Zhang, Chunmin; Ren, Wang; Jia, Chenling; Zhang, Lin; Li, Qiwei

doi:10.1117/12.2034182

Cited by 4 publications

(1 citation statement)

References 37 publications

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“…Almost at the same time, we proposed to insert a Wollaston prism array (WPA) and a lens array (LA) into our windowing Savart polarization interference imaging spectrometer to obtain a series of twodimensional polarization interference images with sequential single snapshots. This method enables us to obtain hyperspectral images from four Stokes parameters [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Demonstration of a snapshot full-Stokes division-of-aperture imaging polarimeter using Wollaston prism array

Zhang

Liang

2015

J. Opt.

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A snapshot full-Stokes division-of-aperture imaging polarimeter using a Wollaston prism array (WPA) is theoretically described and experimentally demonstrated. Two-dimensional spatial distributions of six polarization eigenstates, linear (0°, 90°, 45°, 135°), and left and right circular polarization states, are identified and separated by the WPA simultaneously and projected onto the six portions of a single focal-plane array by a lens array. The conditions of the measurement matrix formed by the six polarization modulation channels are naturally superior for immunity to Gaussian and Poisson noise. The unique properties of the WPA, such as its high extinction ratio, optical efficiency and transmittance, can further ensure the achievement of immunity. The snapshot principle and the conditions of the measurement matrix are discussed. A proof-of-concept system using a complementary metal oxide semiconductor (CMOS) sensor for visible light is built and validated using laboratory and outdoor measurements.

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Section: Introductionmentioning

confidence: 99%

Demonstration of a snapshot full-Stokes division-of-aperture imaging polarimeter using Wollaston prism array

Zhang

Liang

2015

J. Opt.

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Spatially modulated snapshot imaging polarimeter using two Savart polariscopes

Xing

et al. 2020

Appl. Opt.

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We present a spatially modulated snapshot imaging polarimeter using two Savart polariscopes (SMSIPTS). Not only can it avoid alignment angle errors and additional phase errors of a half-wave plate (HWP), it can also avoid changing the HWP frequently when we want the target polarization state at different wavelengths and can increase some channel bandwidth to improve image quality, compared with a spatially modulated snapshot imaging polarimeter (SMSIP). The alignment angle error and additional phase errors of SMSIP and the optical layout and principle of SMSIPTS are derived first. The full Stokes polarization images can be obtained by processing the interferogram. Based on SMSIPTS, we determine the filtering method by simulation. We proved the feasibility of SMSIPTS, and the effect of SMSIPTS and SMSIP on reconstruction is compared by simulation. Last, we experimentally verified the feasibility of the theory of SMSIPTS.

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Error analysis of single-snapshot full-Stokes division-of-aperture imaging polarimeters

Mu¹,

Zhang²,

Li³

et al. 2015

Opt. Express

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Single-snapshot full-Stokes imaging polarimetry is a powerful tool for the acquisition of the spatial polarization information in real time. According to the general linear model of a polarimeter, to recover full Stokes parameters at least four polarimetric intensities should be measured. In this paper, four types of single-snapshot full-Stokes division-of-aperture imaging polarimeter with four subapertures are presented and compared, with maximum spatial resolution for each polarimetric image on a single area-array detector. By using the error propagation theories for different incident states of polarization, the performance of four polarimeters are evaluated for several main sources of error, including retardance error, alignment error of retarders, and noise perturbation. The results show that the configuration of four 132° retarders with angular positions of ( ± 51.7°, ± 15.1°) is an optimal choice for the configuration of four subaperture single-snapshot full-Stokes imaging polarimeter. The tolerance and uncertainty of this configuration are analyzed.

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Compact and static Fourier transform imaging spectropolarimeters using birefringent elements

Cited by 4 publications

References 37 publications

Demonstration of a snapshot full-Stokes division-of-aperture imaging polarimeter using Wollaston prism array

Demonstration of a snapshot full-Stokes division-of-aperture imaging polarimeter using Wollaston prism array

Spatially modulated snapshot imaging polarimeter using two Savart polariscopes

Error analysis of single-snapshot full-Stokes division-of-aperture imaging polarimeters

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