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Title: Probing collective excitations in helium nanodroplets: Observation of phonon wings in the infrared spectrum of methane
Authors: Rudolph, S.
Wollny, G.
von Haeften, Klaus
Havenith, M.
First Published: 29-Mar-2007
Publisher: American Institute of Physics
Citation: Journal of Chemical Physics, 2007, 126 (12), 4318.
Abstract: The authors have recorded the ν3 infrared spectrum of methane in helium nanodroplets using our cw infrared optical parametric oscillator. In a previous paper, Nauta and Miller [Chem. Phys. Lett. 350, 225 (2001)] reported the observation of the monomer rovibrational transitions of methane in helium nanodroplets. Here, they report the observation of additional absorption bands in the frequency range between 2990 and 3070 cm−1 blueshifted compared to the monomer transitions. They attribute these absorption features to phonon wings of individual rovibrational transitions, i.e., the simultaneous excitation of collective excitation modes of the quantum fluid and the rovibrational excitation of the methane monomer in the helium nanodroplet.
DOI Link: 10.1063/1.2709887
ISSN: 1089-7690
Type: Article
Rights: The following article appeared in the Journal of Chemical Physics, 2007, 126 (12), 4318, and may be found at Doi: 10.1063/1.2709887. Copyright 2007 American Institute of Physics. This article may be downloaded for personal use only. any other use requires prior permission of the author and the American Institute of Physics.
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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