Journal
OPTICS EXPRESS
Volume 27, Issue 8, Pages 11734-11747Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.27.011734
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Funding
- Fundamental Research Funds for the Central Universities [JB180507, XJS17095]
- Major Program of the National Natural Science Foundation of China [41530422]
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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.
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