An imaging spectro-polarimeter for measuring hemispherical spectrally resolved down-welling sky polarization

David B. Chenault; J. Larry Pezzaniti; Michael Roche; Brian Hyatt

doi:10.1117/12.2227925

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17 May 2016 An imaging spectro-polarimeter for measuring hemispherical spectrally resolved down-welling sky polarization

David B. Chenault, J. Larry Pezzaniti, Michael Roche, Brian Hyatt

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Proceedings Volume 9840, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XXII; 98401S (2016) https://doi.org/10.1117/12.2227925
Event: SPIE Defense + Security, 2016, Baltimore, Maryland, United States

Abstract

A full sky imaging spectro-polarimeter has been developed that measures spectrally resolved (~2.5 nm resolution) radiance and polarization (𝑠₀, 𝑠₁, 𝑠₂ Stokes Elements) of natural sky down-welling over approximately 2π sr between 400nm and 1000nm. The sensor is based on a scanning push broom hyperspectral imager configured with a continuously rotating polarizer (sequential measurement in time polarimeter). Sensor control and processing software (based on Polaris Sensor Technologies Grave’ camera control software) has a straight-forward and intuitive user interface that provides real-time updated sky down-welling spectral radiance/polarization maps and statistical analysis tools.

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David B. Chenault, J. Larry Pezzaniti, Michael Roche, and Brian Hyatt "An imaging spectro-polarimeter for measuring hemispherical spectrally resolved down-welling sky polarization", Proc. SPIE 9840, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XXII, 98401S (17 May 2016); https://doi.org/10.1117/12.2227925

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