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Optical Engineering

Two-dimensional measurement of birefringence dispersion using spectroscopic polarized light
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Paper Abstract

This paper describes a method and system for the measuring the two-dimensional distribution of birefringence dispersion. An optical arrangement consists of a white light source, parallel polarizers, a CCD camera, and an acousto-optic tunable filter for selecting wavelength of the incident light. The intensity of spectroscopic polarized light changes sinusoidally as a function of wave number, and its period changes slightly because of birefringence dispersion. The fast Fourier transform method is used to analyze the birefringence dispersion from the spectroscopic polarized light. One hundred twenty-eight captured images are used for the analysis. Some experimental results on 2-D birefringence dispersion distributions are shown for the demonstration of this method.

Paper Details

Date Published: 1 March 2006
PDF: 6 pages
Opt. Eng. 45(3) 033601 doi: 10.1117/1.2179787
Published in: Optical Engineering Volume 45, Issue 3
Show Author Affiliations
Toshitaka Wakayama, Tokyo Univ. of Agriculture and Technology (Japan)
Hiroyuki Kowa, Uniopt Co. Ltd. (Japan)
Yukitoshi Otani, Tokyo Univ. of Agriculture and Technology (Japan)
Norihiro Umeda, Tokyo Univ. of Agriculture and Technology (Japan)
Toru Yoshizawa, Opton Co., Ltd. (Japan)

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