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Towards a Structure-Rsa Relationship for Non-Linear Optical Materials.

Published online by Cambridge University Press:  15 February 2011

G. S. Bahra ,
J. Griffiths ,
W. Healy ,
V. Millar ,
S. J. Till  and
J. Till
G. S. Bahra
Affiliation:
Defence Research Agency, Fort Halstead, Sevenoaks, Kent TN14 7BP. UK
J. Griffiths
Affiliation:
University of Leeds, Department of Colour Chemistry and Dyeing, Leeds, LS2 9JT, UK
W. Healy
Affiliation:
Defence Research Agency, Fort Halstead, Sevenoaks, Kent TN14 7BP. UK
V. Millar
Affiliation:
University of Leeds, Department of Colour Chemistry and Dyeing, Leeds, LS2 9JT, UK
S. J. Till
Affiliation:
Defence Research Agency, St. Andrews Road, Malvem. Worcs. WR14 3PS, UK.
J. Till
Affiliation:
Defence Research Agency, St. Andrews Road, Malvem. Worcs. WR14 3PS, UK.
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Abstract

Measurements on the reverse saturable absorption (RSA) properties of some polyene dyes are presented. For a series of linear dyes, a correlation is observed between the symmetry of a molecule and its ability to exhibit RSA. To our knowledge, this is the first structure-RSA relationship discovered to date.

Certain of these materials have been studied with semi-empirical quantum chemical techniques and the observed structure-RSA relationship is rationalised in terms of the calculated electronic structures. In this paper, we report primarily on some studies we have carried out on the linear dye systems.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 374: Symposia ZB – Materials for Optical Limiting , 1994 , 33
Copyright
Copyright © Materials Research Society 1995

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