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Angular amplification by a diffraction grating for chiro-optical measurements

Rajan, Rajitha Papukutty and Ghosh, Ambarish (2012) Angular amplification by a diffraction grating for chiro-optical measurements. In: APPLIED OPTICS, 51 (27). pp. 6480-6483.

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Official URL: http://dx.doi.org/10.1364/AO.51.006480

Abstract

The angles at which a light beam gets diffracted by a grating depend strongly on the direction of incidence for diffraction angles close to a right angle. Accordingly, it is possible to amplify small beam deflections by placing a grating at an optimal orientation to the light path. We use this principle to amplify small beam deviations arising out of a light beam refracting at the interface of an optically active medium, and demonstrate a new technique of enhancing the limit of detection of chiro-optical measurements. (C) 2012 Optical Society of America

Item Type: Journal Article
Additional Information: Copyright for this article belongs to the Optical Society of America
Department/Centre: Division of Interdisciplinary Research > Centre for Nano Science and Engineering
Depositing User: Id for Latest eprints
Date Deposited: 11 Jan 2013 09:12
Last Modified: 11 Jan 2013 09:12
URI: http://eprints.iisc.ac.in/id/eprint/45266

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