Low crosstalk polarization-difference channeled imaging spectropolarimeter using double-Wollaston prism

被引：20

作者：

Li, Qiwei ^{[1
]}

Lu, Fang ^{[1
]}

Wang, Xiaobin ^{[1
]}

Zhu, Changjiang ^{[1
]}

机构：

[1] Xidian Univ, Sch Phys & Optoelect Engn, Xian 710071, Shaanxi, Peoples R China

来源：

OPTICS EXPRESS | 2019年 / 27卷 / 08期

基金：

中国国家自然科学基金;

关键词：

POLARIMETRY;

D O I：

10.1364/OE.27.011734

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A polarization-difference channeled imaging spectropolarimeter (PDCISP) using double-Wollaston prism is presented. It enables simultaneous acquisition of a set of three-channel interferograms corresponding to orthogonal polarization modulation. This brings a large range expanding of optical path difference for useful channels, and the major limitation of channeled spectropolarimetry (CSP), namely the channel crosstalk, can be greatly suppressed by using interferogram difference processing. As a result, full resolution intensity spectrum, as well as high-resolution polarimetric signatures, can be obtained with fewer reconstruction errors, compared to conventional CSP-based systems. The PDCISP is insensitive to alignment errors of retarders and maintains the snapshot feature (1D spatial imaging). The effectiveness of the proposed method is demonstrated by the simulation results. (c) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.

引用

页码：11734 / 11747

页数：14