Liquid-crystal-based Stokes polarimeter

Axel Hofmann

doi:10.1117/12.406640

15 November 2000 Liquid-crystal-based Stokes polarimeter

Axel Hofmann

Proceedings Volume 4133, Polarization Analysis, Measurement, and Remote Sensing III; (2000) https://doi.org/10.1117/12.406640
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

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.

Citation Download Citation

Axel Hofmann "Liquid-crystal-based Stokes polarimeter", Proc. SPIE 4133, Polarization Analysis, Measurement, and Remote Sensing III, (15 November 2000); https://doi.org/10.1117/12.406640

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