Journal ArticleDOI
Picosecond spectroscopy of molecular vibrations in liquids. A vibrational bottleneck in ethanol
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In this paper, Raman spectra taken several picoseconds after an intense vibrational excitation indicate rapid energy transfer between neighboring states, and equilibrium between several CH-levels around 2900 cm-1 is established within ∼ 1 ps.About:
This article is published in Optics Communications.The article was published on 1974-05-01. It has received 82 citations till now. The article focuses on the topics: Vibrational energy relaxation & Picosecond.read more
Citations
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Vibrational dynamics of liquids and solids investigated by picosecond light pulses
A. Laubereau,W. Kaiser +1 more
TL;DR: In this article, a detailed theoretical treatment of different excitation and probing processes are outlined and a variety of results are presented and discussed, including the population lifetime of known vibrational modes and evidence for inter-and intra-molecular interactions.
Journal ArticleDOI
Dephasing processes of molecular vibrations in liquids
TL;DR: In this article, a model based on semiclassical collision theory is presented to describe the dephasing of vibrationally excited molecules in a liquid, and it is shown that fluctuations of the vibrational frequencies which are caused by the intermolecular interaction, lead to phase relaxation of a coherently excited state.
Journal ArticleDOI
Energy gap law for vibrational relaxation of a molecule in a dense medium
TL;DR: In this article, a model Hamiltonian for direct vibrational relaxation of a guest molecule in a host lattice was proposed and general expressions for the vibrational rate constant were derived utilizing the generating function method, elucidating the gross features of multiphononon relaxation phenomena.
Journal ArticleDOI
Optical absorptions of light and heavy water by laser optoacoustic spectroscopy
A. C. Tam,C. K. N. Patel +1 more
TL;DR: A pulsed dye-laser optoacoustic spectroscopy technique has been used to measure the absorption spectra of light and heavy water at 21.5 degrees C in the visible region and are believed to be the most reliable so far.
References
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Direct Measurement of the Vibrational Lifetimes of Molecules in Liquids
TL;DR: In this article, a normal molecular vibration is strongly excited by a picosecond light pulse and the rise and decay of the excess population of the first excited vibrational state (electronic ground state) is observed with a delayed probe pulse.
Journal ArticleDOI
Establishment of a Molecular-Vibration Decay Route in a Liquid
Robert R. Alfano,S. L. Shapiro +1 more
TL;DR: In this paper, the decay route of the methyl vibrations in ethanol excited by stimulated Raman scattering is shown to be a splitting into daughter vibrations of half the frequency, and the growth and decay of these daughter vibrations are reported for the first time using picosecond probe techniques.
Related Papers (5)
Direct Measurement of the Vibrational Lifetimes of Molecules in Liquids
Vibrational dynamics of liquids and solids investigated by picosecond light pulses
A. Laubereau,W. Kaiser +1 more