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DOE OSTI · 1338052

Athermal channeled spectropolarimeter

Jones, Julia Craven
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Abstract

A temperature insensitive (athermal) channeled spectropolarimeter (CSP) is described. The athermal CSP includes a crystal retarder formed of a biaxial crystal. The crystal retarder has three crystal axes, wherein each axis has its own distinct index of refraction. The axes are oriented in a particular manner, causing an amplitude modulating carrier frequency induced by the crystal retarder to be thermally invariant. Accordingly, a calibration beam technique can be used over a relatively wide range of ambient temperatures, with a common calibration data set.

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BibTeXRIS

Jones, Julia Craven. 2015-12-08. Athermal channeled spectropolarimeter. https://www.osti.gov/biblio/1338052

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