ORCA's depolarizer

Eugene Waluschka; Mark Wilson; Manuel Quijada; Brendan McAndrew; Leibo Ding

doi:10.1117/12.895482

13 September 2011 ORCA's depolarizer

Eugene Waluschka, Mark Wilson, Manuel Quijada, Brendan McAndrew, Leibo Ding

Author Affiliations +

Proceedings Volume 8153, Earth Observing Systems XVI; 81530U (2011) https://doi.org/10.1117/12.895482
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

The Ocean Radiometer for Carbon Assessment (ORCA), currently being developed at Goddard, is a hyperspectral instrument with a spectral range extending from 350nm to 880nm in the UV and visible wavelength. Its radiometric measurement accuracy will depend, in part, on the extent to which it is insensitive to linearly polarized light. A wedge type depolarizer is used to reduce ORCA's polarization sensitivity over its entire spectral range. The choice for this approach is driven by the large spectral range and to a certain extent is also influenced by the currently orbiting SeaWifs instrument's use of a wedge depolarizer and its low polarization sensitivity. The wedge depolarizer's design, its modeled and measured depolarization characteristics are presented.

Citation Download Citation

Eugene Waluschka, Mark Wilson, Manuel Quijada, Brendan McAndrew, and Leibo Ding "ORCA's depolarizer", Proc. SPIE 8153, Earth Observing Systems XVI, 81530U (13 September 2011); https://doi.org/10.1117/12.895482

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