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Refractive index measurement by the moire technique

Ranganayakamma, B and Prasad, CR (1973) Refractive index measurement by the moire technique. In: Journal of Physics E - Scientific Instruments, 6 (12). 1186-1188.

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Abstract

A simple moire method for the direct measurement of refractive indices is presented. The change of magnification and/or distortion of the image of a linear grating when viewed through a refractive index field is amplified by means of moire fringes and is measured directly. Relations between the index of refraction and fringe spacing are derived and have been verified experimentally.

Item Type: Journal Article
Additional Information: Copy right of this article belongs to Institute of Physics.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 07 Jan 2010 05:37
Last Modified: 19 Sep 2010 05:44
URI: http://eprints.iisc.ernet.in/id/eprint/23004

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