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Proceedings Paper

Refractive index determination of highly absorbing materials by oblique transmittance measurements
Author(s): Celia Sánchez Pérez; Augusto García Valenzuela; Luis Castañeda Aviña; G. Eduardo Sandoval Romero
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Paper Abstract

We propose a simple technique for determining the refractive indices of highly absorbing materials. This method uses two transmittance measurements at oblique incidence. A theoretical analysis of the proposed method is presented. The refractive index of water was experimentally determined with a relative error ranging from 0.12% to 1.3%. We discuss the extension of this method to spectroscopic measurements.

Paper Details

Date Published: 10 February 2006
PDF: 6 pages
Proc. SPIE 6046, Fifth Symposium Optics in Industry, 60461V (10 February 2006); doi: 10.1117/12.674601
Show Author Affiliations
Celia Sánchez Pérez, Univ. Nacional Autónoma de México (Mexico)
Augusto García Valenzuela, Univ. Nacional Autónoma de México (Mexico)
Luis Castañeda Aviña, Univ. Nacional Autónoma de México (Mexico)
G. Eduardo Sandoval Romero, Univ. Nacional Autónoma de México (Mexico)

Published in SPIE Proceedings Vol. 6046:
Fifth Symposium Optics in Industry
Eric Rosas; Rocío Cardoso; Juan C. Bermudez; Oracio Barbosa-García, Editor(s)

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