Refractive-Index Measurements of Zinc Germanium Diphosphide at 300 and 77 K by Use of a Modified Michelson Interferometer

Author Info

Glen D. Gillen, Wright-Patterson Air Force BaseFollow
Shekhar Guha, Wright-Patterson Air Force Base

Recommended Citation

Published in Applied Optics, Volume 43, Issue 10, January 1, 2004, pages 2054-2058.

NOTE: At the time of publication, the author Glen Gillen was not yet affiliated with Cal Poly.

The definitive version is available at https://doi.org/10.1364/AO.43.002054.

Abstract

A method to determine the absolute refractive index of materials available in the shape of flat wafers with parallel sides by using interferometric techniques is presented. With this method, nondestructive, sample-specific measurements can be made. The method is tested by using silicon, germanium and zinc selenide, and measurements for both the ordinary and extraordinary axes of ZnGeP₂ for temperatures of 300 and 77 K are reported.

Disciplines

Physics

Copyright

2004 Optical Society of America.

Publisher statement

This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.