Theoretical studies of two-photon absorption processes. I. Molecular benzene

Barry Honig*, Joshua Jortner, Abraham Szöke

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

85 Scopus citations


The theory of two-photon transitions is extended to include vibronic-coupling effects. The theory of symmetry-forbidden two-photon transitions is applied for the theoretical study of excitations in benzene. The introduction of vibronic-coupling effects implies that the transition probability should be temperature dependent. A definite assignment of the electronic states of benzene can be obtained from theoretical predictions of the intensity ratios, the vibrational structure, and the polarization dependence for two-photon absorption cross sections in this system.

Original languageEnglish
Pages (from-to)2714-2727
Number of pages14
JournalThe Journal of Chemical Physics
Issue number7
StatePublished - 1967


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