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Proceedings Paper • Open Access

A method for measuring two-dimensional distribution of refractive index of a material
Author(s): Po-Jen Hsieh; Huei-Wen Chen; Zhi-Cheng Jian; Der-Chin Su

Paper Abstract

The p-polarized light beam is incident on the boundary between a right-angle prism and a test material. When the total internal reflection occurs at the boundary, and the p-polarized light has phase variation. It depends on the refractive index of the tested material. Firstly, the two-dimensional distribution of phase variation of the p-polarized light at the boundary is measured by the four-step phase shifting interferometric technique. Then, substituting the data into the special equations derived from Fresnel equations, the two-dimensional distribution of refractive index of the tested material can be obtained.

Paper Details

Date Published: 24 October 2005
PDF: 3 pages
Proc. SPIE 9664, Ninth International Topical Meeting on Education and Training in Optics and Photonics, 966416 (24 October 2005); doi: 10.1117/12.2207728
Show Author Affiliations
Po-Jen Hsieh, National Chiao-Tung Univ. (Taiwan)
Huei-Wen Chen, National Chiao-Tung Univ. (Taiwan)
Zhi-Cheng Jian, National Chiao-Tung Univ. (Taiwan)
Der-Chin Su, National Chiao-Tung Univ. (Taiwan)


Published in SPIE Proceedings Vol. 9664:
Ninth International Topical Meeting on Education and Training in Optics and Photonics
François Flory, Editor(s)

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