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Proceedings Paper

GRIN elements in the interference method of glass index measurement
Author(s): Dmitrii K. Tagantsev; Garegin O. Karapetyan
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Paper Abstract

A new interference method for measurement of the refractive index of glass has been developed. The method is based on the Mach-Zehnder interferometry and GRIN elements are used for a scale of refractive index. Cone, pyramid or wedge elements are privileged in this method. Both the object under study and GRIN elements are placed in an oil immersion container, then oil is heated until the specimen becomes invisible. For such a situation the interference fringes produced by the GRIN standard are analyzed. The accuracy of refractive index measurements is equal to +/- 0.00001.

Paper Details

Date Published: 22 October 1996
PDF: 3 pages
Proc. SPIE 2943, Gradient-Index Optics in Science and Engineering, (22 October 1996); doi: 10.1117/12.255530
Show Author Affiliations
Dmitrii K. Tagantsev, S.I. Vavilov State Optical Institute (Russia)
Garegin O. Karapetyan, S.I. Vavilov State Optical Institute (Russia)


Published in SPIE Proceedings Vol. 2943:
Gradient-Index Optics in Science and Engineering

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