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Paper: Expanding Applications of the Polarimeters with Ferroelectric Liquid Crystals and their Calibration
Volume: 405, Solar Polarization 5: In Honor of Jan Olof Stenflo
Page: 401
Authors: Hanaoka, Y.
Abstract: We are carrying out regular solar observations in the Fe 6303 and the Hα lines by polarimeters with ferroelectric liquid crystals (FLCs), and they realized the polarimetry with very high sensitivity. On the basis of this success, we are now extending the polarimetry with the FLC polarimeters to various types of observations. To make such ‘transplant’ easy, the following design principles are adopted:
- Portable design of the polarimeter - independent from the specific telescope system and optics.
- Standardized, easy-to-do calibration procedure.
Our polarimeters can be installed into various systems easily, and they achieve the same high sensitivity as the existing successful system even in a short-term experimental observation. Here we present various new observations with the FLC polarimeters, which we are carrying out/planning now, and we show examples of the calibration parameters for the FLC polarimeters, which help to obtain the high-precision polarization data.
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