Mu Tingkui, Zhang Chunmin, Li Qiwei, Liang Rongguang
Opt Express. 2015 Apr 20;23(8):10822-35. doi: 10.1364/OE.23.010822.
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.
单快照全斯托克斯成像偏振测量法是一种用于实时获取空间偏振信息的强大工具。根据偏振计的一般线性模型，要恢复完整的斯托克斯参数，至少应测量四个偏振强度。本文介绍并比较了四种具有四个子孔径的单快照全斯托克斯孔径分割成像偏振计，每个偏振图像在单个面阵探测器上具有最大空间分辨率。通过针对不同的入射偏振态使用误差传播理论，评估了四种偏振计在几个主要误差源（包括延迟误差、延迟器对准误差和噪声扰动）方面的性能。结果表明，四个角度位置为（±51.7°，±15.1°）的132°延迟器的配置是四子孔径单快照全斯托克斯成像偏振计配置的最佳选择。分析了该配置的容差和不确定性。
