V. O. Kompanets, V. B. Laptev, A. A. Makarov, S. V. Pigulskii, E. A. Ryabov, S. V. Chekalin, “Direct observation of the vibrational energy redistribution in (CF<nobr>$_3)_2$</nobr>CCO molecules resonantly excited by femtosecond infrared laser radiation”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2010, Volume 92, Issue 3,Pages <nobr>157

This article is cited in 9 papers

ATOMS, SPECTRA, RADIATIONS

Direct observation of the vibrational energy redistribution in (CF$_3)_2$CCO molecules resonantly excited by femtosecond infrared laser radiation

V. O. Kompanets^a, V. B. Laptev^a, A. A. Makarov^ba, S. V. Pigulskii^a, E. A. Ryabov^a, S. V. Chekalin^a

^a Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow region, Russia
^b Moscow Institute of Physics and Technology, Dolgoprudnyi, Moscow region, Russia

Abstract: The dynamics of multiphoton excitation of (CF$_3)_2$CCO molecules has been investigated under the condition of resonant action of femtosecond infrared laser radiation on the $\nu_1$ vibrational mode of the C=C=O bond. It has been shown that the mode-selective excitation of this vibration occurs up to the $\nu=6$ level. The kinetics of the subsequent intramolecular vibrational energy redistribution from the $\nu_1$ mode has been measured. A value of $5\pm0.3\,$ ps has been obtained for the characteristic time of this process.

Received: 11.06.2010