Resonant impulsive-stimulated Raman scattering on malachite green
We have studied in the femtosecond regime the transient dynamics of dichroism (anisotropic absorption), birefringence, and frequency shift induced by an intense femtosecond pump beam in the dye malachite green in solution. Vibrational quantum beats were observed superimposed on the saturated absorption and dispersion signals and quantitatively explained in terms of impulsive-stimulated Raman scattering close to an electronic resonance. The selectivity for observation of the vibrations in the two electronic states is described for the different experimental schemes. We discuss the access to vibrational and electronic dynamics in both ground and excited electronic states and compare the possibilities to those of previous techniques.
- Research Organization:
- Laboratoire d'Optique Quantique du Centre National de la Recherche Scientifique, Ecole Polytechnique, 91128 Palaiseau Cedex, France
- OSTI ID:
- 7085254
- Journal Information:
- Phys. Rev. A; (United States), Vol. 38:7
- Country of Publication:
- United States
- Language:
- English
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