Sensitivity of Lau fringes to grating rotation: theoretical analysis

Chitralekha, Sundergopal and Kodikullam, V and Pappu, Sastry V (1990) Sensitivity of Lau fringes to grating rotation: theoretical analysis. In: Applied Optics, 29 (1). pp. 125-128.

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Abstract

Recently reported experimental results on the rotation sensitivity of Lau fringes to the spatial coherence of the source have been theoretically analyzed and explained on the basis of coherence theory. A theoretical plot of the rotation angle required for the Lau fringes to vanish is obtained as a function of the coherence length of the illumination used in the Lau experiment. The theoretical results compare well with the experimental observations. The analysis as well as the experiment could form the basis for a simple and easy measurement of the coherence length of the illumination in a plane.

Item Type:	Journal Article
Publication:	Applied Optics
Publisher:	Optical Society of America
Additional Information:	Copyright of this article belongs to Optical Society of America.
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	12 Jan 2011 11:41
Last Modified:	08 Jul 2011 08:40
URI:	http://eprints.iisc.ac.in/id/eprint/34956

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