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

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

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17 Citations (Scopus)

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
Pages (from-to)333-341
Number of pages9
JournalChemical Physics Letters
Volume217
Issue number3
DOIs
Publication statusPublished - Jan 14 1994

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

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