Performance characterization of VNIR and SWIR spectropolarimetric imagers

Neelam Gupta

doi:10.1117/12.2177099

3 June 2015 Performance characterization of VNIR and SWIR spectropolarimetric imagers

Neelam Gupta

Proceedings Volume 9482, Next-Generation Spectroscopic Technologies VIII; 948216 (2015) https://doi.org/10.1117/12.2177099
Event: SPIE Sensing Technology + Applications, 2015, Baltimore, MD, United States

Abstract

Two compact prototype spectropolarimetric imagers operating in the visible-near-infrared (VNIR) and shortwave-infrared (SWIR) regions were developed. Each of these imagers uses a noncollinear acousto-optic tunable filter (AOTF) and collects data with four linear incident polarizations—vertical, horizontal and ±45°. The spectral region of operation for the first imager is from 450 to 800 nm and the second one from 1000 to 1600 nm. These imagers are field-portable and before field test were characterized for their performance in collecting hyperspectral and full linear polarization signatures. Image cubes of scenes with natural objects were collected and analyzed. Here, we present imaging and spectral analysis results for these imagers.

Citation Download Citation

Neelam Gupta "Performance characterization of VNIR and SWIR spectropolarimetric imagers", Proc. SPIE 9482, Next-Generation Spectroscopic Technologies VIII, 948216 (3 June 2015); https://doi.org/10.1117/12.2177099

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