The integrated photon echo and solvation dynamics. II. Peak shifts and two-dimensional photon echo of a coupled chromophore system.

Minhaeng Cho, Graham R. Fleming

    Research output: Contribution to journalArticlepeer-review

    57 Citations (Scopus)

    Abstract

    A theoretical description of one- and two-color photon echo peak shifts (PEPS) and two-dimensional (2D) photon echo spectrum (PES) of a coupled chromophore system are presented. The effects of population relaxation in the one-exciton states on both the PEPS and the 2D PES are investigated. For values of time T shorter than the population relaxation time, a finite two-color peak shift magnitude and nonzero cross peaks in the 2D PES provide evidence of electronic coupling between the chromophores. These two distinct observables, i.e., PEPS and off-diagonal peaks, both originate from the electronic coupling. However, it is shown that the PEPS and 2D PES methods can provide complementary information on the structure-dependent nonlinear optical responses of coupled chromophore systems.

    Original languageEnglish
    JournalThe Journal of Chemical Physics
    Volume123
    Issue number11
    DOIs
    Publication statusPublished - 2005 Sept 15

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

    Fingerprint

    Dive into the research topics of 'The integrated photon echo and solvation dynamics. II. Peak shifts and two-dimensional photon echo of a coupled chromophore system.'. Together they form a unique fingerprint.

    Cite this