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Proceedings Paper

Transient third-order optical nonlinearity of organic molecules
Author(s): Valery L. Bogdanov; Alexander G. Spiro
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Paper Abstract

Transient third-order nonlinearity is induced by electronic resonances of excited molecules. Intensity of a signal, which is generated due to transient nonlinear susceptibility, strongly depends on a relaxation pathway and rate of high excited molecular electronic states, and on molecular dynamics in a low-lying excited state. Experimental and theoretical data, concerning a transient susceptibility dependence on dynamics of excited polyatomic organic molecules (ultrafast dephasing and depopulation processes, orientation anisotropy, time-dependence of transient absorption spectrum), are discussed. Obtained results demonstrate a high sensitivity of transient third order susceptibility to dynamics of excited molecules.

Paper Details

Date Published: 5 October 1995
PDF: 11 pages
Proc. SPIE 2527, Nonlinear Optical Properties of Organic Materials VIII, (5 October 1995); doi: 10.1117/12.222799
Show Author Affiliations
Valery L. Bogdanov, S.I. Vavilov State Optical Institute (United States)
Alexander G. Spiro, S.I. Vavilov State Optical Institute (United States)

Published in SPIE Proceedings Vol. 2527:
Nonlinear Optical Properties of Organic Materials VIII
Gustaaf R. Moehlmann, Editor(s)

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