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18 August 2005 Real-time measurement for birefringence dispersion using double retarder
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Abstract
A real-time measurement method for both birefringence dispersion and azimuthal angle is described. An optical set-up of this measurement consists of a white light source, two polarizers and two reterders without any rotation. A spectroscopic intensity is detected by a spectrometer. It is modulated with two different frequencies along wave number. Only the single spectroscopic intensity is sufficient to determine the retardation and the azimuthal angle with wavelength-dependence using two amplitude spectrum and phase by the fast Fourier transform method. A birefringence measurement of a Babinet-Soleil compensator as a sample is demonstrated experimentally.
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Toshitaka Wakayama, Yukitoshi Otani, and Norihiro Umeda "Real-time measurement for birefringence dispersion using double retarder", Proc. SPIE 5888, Polarization Science and Remote Sensing II, 588807 (18 August 2005); https://doi.org/10.1117/12.618065
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