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Proceedings Paper

Maximum bandwidth snapshot channeled imaging polarimeter with polarization gratings
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Paper Abstract

Compact snapshot imaging polarimeters have been demonstrated in literature to provide Stokes parameter estimations for spatially varying scenes using polarization gratings. However, the demonstrated system does not employ aggressive modulation frequencies to take full advantage of the bandwidth available to the focal plane array. A snapshot imaging Stokes polarimeter is described and demonstrated through results. The simulation studies the challenges of using a maximum bandwidth configuration for a snapshot polarization grating based polarimeter, such as the fringe contrast attenuation that results from higher modulation frequencies. Similar simulation results are generated and compared for a microgrid polarimeter. Microgrid polarimeters are instruments where pixelated polarizers are superimposed onto a focal plan array, and this is another type of spatially modulated polarimeter, and the most common design uses a 2x2 super pixel of polarizers which maximally uses the available bandwidth of the focal plane array.

Paper Details

Date Published: 4 May 2016
PDF: 11 pages
Proc. SPIE 9853, Polarization: Measurement, Analysis, and Remote Sensing XII, 98530U (4 May 2016); doi: 10.1117/12.2228561
Show Author Affiliations
Charles F. LaCasse, Sandia National Labs. (United States)
Brian J. Redman, North Carolina State Univ. (United States)
Michael W. Kudenov, North Carolina State Univ. (United States)
Julia M. Craven, North Carolina State Univ. (United States)

Published in SPIE Proceedings Vol. 9853:
Polarization: Measurement, Analysis, and Remote Sensing XII
David B. Chenault; Dennis H. Goldstein, Editor(s)

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