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

  • Kwak, Kyoung-Won (Department of Chemistry and Center for Multidimensional Spectroscopy, Korea University) ;
  • Cho, Min-Haeng (Department of Chemistry and Center for Multidimensional Spectroscopy, Korea University) ;
  • Fleming, Graham R. (Department of Chemistry and Center for Multidimensional Spectroscopy, Korea University) ;
  • Agarwal, Ritesh (Department of Chemistry, University of California, Berkeley and Physical Biosciences Division,Lawrence Berkeley National Laboratory) ;
  • Prall, Bradley S. (Department of Chemistry, University of California, Berkeley and Physical Biosciences Division,Lawrence Berkeley National Laboratory)
  • 발행 : 2003.08.20

초록

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.

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참고문헌

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피인용 문헌

  1. Physical Chemistry Research Articles Published in the Bulletin of the Korean Chemical Society: 2003-2007 vol.29, pp.2, 2008, https://doi.org/10.5012/bkcs.2008.29.2.450