Design and simulation analysis of the AOTF full-Stokes imaging spectropolarimeter

Lingying Chang; Xi Pan; Yuehong Qiu; Yitian Wang; Guanru Wang; Xinyou Wang

doi:10.1364/JOSAA.461961

Journal of the Optical Society of America A
Vol. 39,
Issue 9,
pp. 1634-1640
(2022)
•https://doi.org/10.1364/JOSAA.461961

Design and simulation analysis of the AOTF full-Stokes imaging spectropolarimeter

Lingying Chang, Xi Pan, Yuehong Qiu, Yitian Wang, Guanru Wang, and Xinyou Wang

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Lingying Chang, Xi Pan, Yuehong Qiu, Yitian Wang, Guanru Wang, and Xinyou Wang, "Design and simulation analysis of the AOTF full-Stokes imaging spectropolarimeter," J. Opt. Soc. Am. A 39, 1634-1640 (2022)

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Table of Contents Category
- Instrumentation, Measurement, and Metrology
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The topics in this list come from the Optics and Photonics Topics applied to this article.

About this Article
History
- Original Manuscript: April 28, 2022
- Revised Manuscript: June 24, 2022
- Manuscript Accepted: July 11, 2022
- Published: August 18, 2022

Abstract

In order to effectively improve the contrast of target identification, an acousto-optic tunable filter (AOTF) full-Stokes imaging spectropolarimeter is proposed, which can measure synchronously polarization information with each spectral band in real time. The full-Stokes vectors are obtained by the division-of-aperture polarization imaging system. The spectral bands are selected by RF of the AOTF electrically. Based on this system, a polarization error model is established, and the influence of the key polarization element angle error is analyzed. The results show that the measurement error increases with the increase of the polarization degree. When ${\rm P} = {1}$, the influence of the azimuth angle error is greater than the retardance error under the same angle error. The results are helpful to find the variation law of the polarization error and provide a theoretical reference for the design of new types of full-Stokes imaging spectropolarimeters.

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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$Δ δ$ $Δ θ$	−2°	−1°	0°	1°	2°
−2°	1.74%	1.35%	1.26%	1.56%	1.88%
−1°	1.43%	0.87%	0.63%	0.95%	1.36%
0°	1.42%	0.71%	0.00%	0.69%	1.34%
1°	1.45%	0.97%	0.64%	0.88%	1.35%
2°	1.95%	1.60%	1.29%	1.37%	1.76%

$Δ δ$ $Δ θ$		−2°	−1°	0°	1°	2°
−2°	$Δ I$	1.50%	1.05%	0.63%	0.72%	1.03%
	$Δ Q$	7.58%	3.83%	0.63%	4.14%	8.05%
	$Δ U$	5.39%	2.69%	0.51%	2.79%	5.53%
	$Δ V$	1.80%	1.92%	1.96%	1.92%	1.80%
−1°	$Δ I$	1.17%	0.73%	0.31%	0.51%	0.94%
	$Δ Q$	7.53%	3.78%	0.31%	3.98%	7.88%
	$Δ U$	5.45%	2.73%	0.25%	2.79%	5.55%
	$Δ V$	0.83%	0.95%	0.99%	0.95%	0.83%
0°	$Δ I$	0.92%	0.45%	0.00%	0.43%	0.86%
	$Δ Q$	7.48%	3.73%	0.00%	3.82%	7.72%
	$Δ U$	5.52%	2.77%	0.00%	2.79%	5.57%
	$Δ V$	0.16%	0.04%	0.00%	0.04%	0.16%
1°	$Δ I$	0.90%	0.49%	0.31%	0.68%	1.05%
	$Δ Q$	7.47%	3.87%	0.31%	3.74%	7.55%
	$Δ U$	5.58%	2.82%	0.25%	2.79%	5.59%
	$Δ V$	1.16%	1.05%	1.01%	1.05%	1.16%
2°	$Δ I$	0.97%	0.69%	0.61%	0.97%	1.31%
	$Δ Q$	7.60%	4.01%	0.61%	3.78%	7.43%
	$Δ U$	5.65%	2.86%	0.49%	2.79%	5.62%
	$Δ V$	2.19%	2.08%	2.04%	2.08%	2.19%

$Δ δ$ $Δ θ$	−2°	−1°	0°	1°	2°
−2°	1.74%	1.35%	1.26%	1.56%	1.88%
−1°	1.43%	0.87%	0.63%	0.95%	1.36%
0°	1.42%	0.71%	0.00%	0.69%	1.34%
1°	1.45%	0.97%	0.64%	0.88%	1.35%
2°	1.95%	1.60%	1.29%	1.37%	1.76%

$Δ δ$ $Δ θ$		−2°	−1°	0°	1°	2°
−2°	$Δ I$	1.50%	1.05%	0.63%	0.72%	1.03%
	$Δ Q$	7.58%	3.83%	0.63%	4.14%	8.05%
	$Δ U$	5.39%	2.69%	0.51%	2.79%	5.53%
	$Δ V$	1.80%	1.92%	1.96%	1.92%	1.80%
−1°	$Δ I$	1.17%	0.73%	0.31%	0.51%	0.94%
	$Δ Q$	7.53%	3.78%	0.31%	3.98%	7.88%
	$Δ U$	5.45%	2.73%	0.25%	2.79%	5.55%
	$Δ V$	0.83%	0.95%	0.99%	0.95%	0.83%
0°	$Δ I$	0.92%	0.45%	0.00%	0.43%	0.86%
	$Δ Q$	7.48%	3.73%	0.00%	3.82%	7.72%
	$Δ U$	5.52%	2.77%	0.00%	2.79%	5.57%
	$Δ V$	0.16%	0.04%	0.00%	0.04%	0.16%
1°	$Δ I$	0.90%	0.49%	0.31%	0.68%	1.05%
	$Δ Q$	7.47%	3.87%	0.31%	3.74%	7.55%
	$Δ U$	5.58%	2.82%	0.25%	2.79%	5.59%
	$Δ V$	1.16%	1.05%	1.01%	1.05%	1.16%
2°	$Δ I$	0.97%	0.69%	0.61%	0.97%	1.31%
	$Δ Q$	7.60%	4.01%	0.61%	3.78%	7.43%
	$Δ U$	5.65%	2.86%	0.49%	2.79%	5.62%
	$Δ V$	2.19%	2.08%	2.04%	2.08%	2.19%

Abstract

Data availability

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Figures (7)

Tables (2)

Equations (13)

Journal of the Optical Society of America A