Unsymmetrical aryl disulfides with excellent transparency in the visible region for second order nonlinear optics

Sudharsanam, Ramanathan and Chandrasekaran, Srinivasan and Das, Puspendu Kumar (2002) Unsymmetrical aryl disulfides with excellent transparency in the visible region for second order nonlinear optics. In: Journal of Materials Chemistry, 12 (10). pp. 2904-2908.

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Abstract

Several unsymmetrically substituted aromatic donor acceptor disulfides have been synthesized and analysed for their second order nonlinear optical properties. These molecules exhibit moderately high first hyperpolarizability (beta) with excellent transparency in the visible region. Most of the unsymmetrical disulfides have a cut-off wavelength below 420 nm. Calculations show that the molecules have an asymmetric charge distribution around the disulfide bond which is responsible for their high beta values. These results provide motivation for the design and synthesis of nonlinear optical chromophores with multiple disulfide bonds for large second order nonlinearity and excellent visible transparency.

Item Type:	Journal Article
Publication:	Journal of Materials Chemistry
Publisher:	Royal Society of Chemistry
Additional Information:	Copyright of this article belongs to Royal Society of Chemistry.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry Division of Chemical Sciences > Organic Chemistry
Date Deposited:	03 Aug 2011 12:45
Last Modified:	03 Aug 2011 12:45
URI:	http://eprints.iisc.ac.in/id/eprint/39650

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