Liquid Crystal Retarder Spectral Retardance Characterization Based on a Cauchy Dispersion Relation and a Voltage Transfer Function

Ramirez M
OPTICAL REVIEW 20, 5 (2013)


We present a methodology for the spectral characterization of the optical modulation properties of a liquid crystal retarder (LCR). The method includes its complete description with a single Cauchy dispersion relation and a single voltage transfer function. As a result, an accurate description of the LCR retardance is achieved, both versus applied voltage and versus wavelength, with very few parameters. Finally, an imaging polarimetric system has also been developed to characterize the spatial variations in the device