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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 24, Number 8
BKCSDE 24(8)
August 20, 2003

Title	Two-color Transient Grating Spectroscopy of a Two-level System
Author	Kyungwon Kwak, Minhaeng Cho, Graham R. Fleming, Ritesh Agarwal, Bradley S. Prall
Keywords	Transient grating, Solvation, Spectroscopy
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.
Page	1069 - 0
Full Text	PDF

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