Transient third-order optical nonlinearity of organic molecules

Valery L. Bogdanov; Alexander G. Spiro

doi:10.1117/12.222799

5 October 1995 Transient third-order optical nonlinearity of organic molecules

Valery L. Bogdanov, Alexander G. Spiro

Proceedings Volume 2527, Nonlinear Optical Properties of Organic Materials VIII; (1995) https://doi.org/10.1117/12.222799
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

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.

Citation Download Citation

Valery L. Bogdanov and Alexander G. Spiro "Transient third-order optical nonlinearity of organic molecules", Proc. SPIE 2527, Nonlinear Optical Properties of Organic Materials VIII, (5 October 1995); https://doi.org/10.1117/12.222799

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