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Proceedings Paper

Liquid-crystal-based Stokes polarimeter
Author(s): Axel Hofmann
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Paper Abstract

The Liquid Crystal based Stokes Polarimeter (LCSP) was developed for high resolution full Stokes spectropolarimetry of solar vector magnetic fields. A prototype version was operated at the Gregory Coud? Telescope (GCT) at the Observatorio del Teide (Tenerife). The low voltage polarimeter consists of two nematic crystal variable retarders in front of a polarizing beam splitter. The voltage tunable variable retardance of the crystals is used for the in situ compensation of cross-talk inside the polarimeter. Other parts of instrumental polarization are removed by a method using the full spectral information contained in the observed Stokes profiles.

Paper Details

Date Published: 15 November 2000
PDF: 11 pages
Proc. SPIE 4133, Polarization Analysis, Measurement, and Remote Sensing III, (15 November 2000); doi: 10.1117/12.406640
Show Author Affiliations
Axel Hofmann, Astrophysical Institute Potsdam (Germany)


Published in SPIE Proceedings Vol. 4133:
Polarization Analysis, Measurement, and Remote Sensing III
David B. Chenault; Walter G. Egan; Michael J. Duggin; Michael J. Duggin; Walter G. Egan; Dennis H. Goldstein, Editor(s)

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