The effect of intramolecular coupling on the optical susceptibilities of a two-level molecule

J. L. Paz, M. García-Sucre, E. Squitieri, V. Mujica

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

The effect of intramolecular coupling on the optical susceptibilities up to third order in the external field is studied using a model molecule consisting of two coupled harmonic curves of electronic energies with minima displaced in energy and nuclear coordinates. We consider two vibrational states and we include non-adiabatic effects for this two-state model. We have calculated the absorption for one-, two- and three-photon processes for values of the parameters characteristic of large organic molecules diluted in water. Our results show that intramolecular coupling has a large effect on this property.

Original languageEnglish (US)
Pages (from-to)333-341
Number of pages9
JournalChemical Physics Letters
Volume217
Issue number3
DOIs
StatePublished - Jan 14 1994

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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