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Phys Rev Lett. 2006 Jun 16;96(23):238303. Epub 2006 Jun 15.

Direct observation of anharmonic coupling in the time domain with femtosecond stimulated Raman scattering.

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1
Department of Chemistry, University of California, Berkeley, California 94720, USA.

Abstract

Off-resonant impulsive Raman excitation is used to initiate nonstationary nuclear motion in low-frequency vibrational modes of deuterio-chloroform. Femtosecond time-resolved stimulated Raman probing of the high-frequency C-D stretch reveals additional vibrational sidebands that arise as a result of anharmonic coupling between the impulsively excited low-frequency and the probed high-frequency vibrations. These experiments illustrate the detailed molecular information on anharmonic and reactive surfaces available from multidimensional femtosecond stimulated Raman techniques.

PMID:
16803414
DOI:
10.1103/PhysRevLett.96.238303
[Indexed for MEDLINE]
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