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Proceedings Paper

Two-dimensional birefringence measurement using the phase-shifting technique
Author(s): Yukitoshi Otani; Takuya Shimada; Toru Yoshizawa; Norihiro Umeda
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Paper Abstract

We propose a two-dimensional birefringence measurement method. A linearly polarized light goes through a Babinet-Soleil compensator whose principle axis direction is set 45 degree to the incident light. The light is affected by the birefringence when it passes through an optical sample. The interference fringe behind a linear polarizer is captured wholly as a two- dimensional image by a CCD camera. The data is analyzed into the phase information by the phase shifting technique using a Babinet-Soleil compensator. Here the obtained phase changes sinusoidally. Its amplitude and phase mean the relative retardation and azimuth angle respectively when a polarization azimuth of the incident light is rotated. A half-wave plate as a phase shifter is used again to obtain this amplitude and phase using the phase shifting technique again. We discuss these experimental procedures and results applied to such optical components as a lens and a roof prism.

Paper Details

Date Published: 20 October 1992
PDF: 9 pages
Proc. SPIE 1720, Intl Symp on Optical Fabrication, Testing, and Surface Evaluation, (20 October 1992); doi: 10.1117/12.132141
Show Author Affiliations
Yukitoshi Otani, Tokyo Univ. of Agriculture and Technology (Japan)
Takuya Shimada, Tokyo Univ. of Agriculture and Technology (Japan)
Toru Yoshizawa, Tokyo Univ. of Agriculture and Technology (Japan)
Norihiro Umeda, Tokyo Univ. of Agriculture and Technology (Japan)


Published in SPIE Proceedings Vol. 1720:
Intl Symp on Optical Fabrication, Testing, and Surface Evaluation

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