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2003•Chinese Journal of Liquid Crystals and DisplaysRequires access

Solar Stokes Vecter Polarimetry Based on FLCM

Yong Shi, Citic Heavy

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Abstract

Solar Stokes vector polarimetry using two standard λ/2 FLCM is presented.The complete Stokes vector (two linear polarizations and circular polarization)can be deduced from four intensity measurements taken at different phase intervals of the modulation.With FLC,modulation frequencies in the kilohertz range can be realized easily.No moving parts that could introduce spurious optical effects are used.In combination with fast demodulators,highprecision vector polarimetry in the visible can be performed. A theoretical analysis is presented and compared with first test results on the system′s performance.

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What this paper is about

Solar Stokes vector polarimetry using two standard λ/2 FLCM is presented.The complete Stokes vector (two linear polarizations and circular polarization)can be deduced from four intensity measurements taken at different phase intervals of the modulation.With FLC,modulation frequencies in the kilohertz range can be realized easily.No moving parts that could introduce spurious optical effects are used.In combination with fast demodulators,highprecision vector polarimetry in the visible can be performed. A theoretical analysis is presented and compared with first test results on the system′s performance.

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Available abstract

Solar Stokes vector polarimetry using two standard λ/2 FLCM is presented.The complete Stokes vector (two linear polarizations and circular polarization)can be deduced from four intensity measurements taken at different phase intervals of the modulation.With FLC,modulation frequencies in the kilohertz range can be realized easily.No moving parts that could introduce spurious optical effects are used.In combination with fast demodulators,highprecision vector polarimetry in the visible can be performed. A theoretical analysis is presented and compared with first test results on the system′s performance.

Key concepts: Polarimetry, Stokes parameters, Spurious relationship, Optics, Physics, Polarization (electrochemistry), Modulation (music), Circular polarization

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