Using three-colour coherent anti-Stokes Raman scattering on the femtosecond time scale, the concentration dependence of the dephasing time Tz of the v2 mode of acetone is carefully studied at room temperature for isotopic dilution and the solvent CCL+. Theoretical arguments suggest that the measured
Vibrational dephasing of liquid carbondisulfide investigated by picosecond CARS
β Scribed by P. Aechtner; A. Laubereau
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 631 KB
- Volume
- 149
- Category
- Article
- ISSN
- 0301-0104
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A recent technique involving coherent propagation of infrared picosecond pulses is applied to various rotation-vibration transitions of HCl : Ar (R-branch)\_ Ultrafast dephasing and beating of the two HCI isotopes is directly measured at several bar total pressure and compared with spectroscopic and
Picosecond delayed CARS expenments on totally symmetric modes in naphthalene at 1.5 K are reported. The Raman hneshape of the vlbratlonal excltons 1s lorentzm and viirahonal relaxation can be surpnsingly slow. The Raman lineshape of the Ag exclton level of the 766 cm-' vlbrahonal mode reveals that t