Two-color Transient Grating Spectroscopy of a Two-level System

Kyungwon Kwak, Minhaeng Cho, Graham R. Fleming, Ritesh Agarwal, Bradley S. Prall

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    A theoretical description and experimental demonstration of homodyne-detected two-color transient grating (2-C TG) signal are presented. By treating, the coupled bath degrees of freedom as a collection of harmonic oscillators and using a short-time expansion method, approximated nonlinear response functions were obtained. An analytic expression for the two-color transient grating signal was obtained by carrying out relevant Gaussian integrals. The initial rising and decaying parts of the 2-C TG signal is shown to be critically dependent on the ultrafast inertial component of the solvation correlation function. The experimental results confirm the predictions of the theoretical model.

    Original languageEnglish
    Pages (from-to)1069-1074
    Number of pages6
    JournalBulletin of the Korean Chemical Society
    Volume24
    Issue number8
    DOIs
    Publication statusPublished - 2003 Aug 20

    Keywords

    • Solvation
    • Spectroscopy
    • Transient grating

    ASJC Scopus subject areas

    • General Chemistry

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