Rotationally Resolved Spectroscopy of Sin Liquid Helium Clusters: A Molecular Probe of Cluster Temperature
- 21 August 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 75 (8), 1566-1569
- https://doi.org/10.1103/physrevlett.75.1566
Abstract
A rotationally resolved infrared spectrum has been obtained for S molecules captured inside of helium clusters of approximately 4000 atoms. The spectrum is interpreted in terms of a spherical top Hamiltonian, although the resulting rotational constant is considerably smaller than that of free S. This can be attributed to the interaction between the molecule and the surrounding helium liquid. The results indicate that the S is located inside the helium cluster and a fit to the spectrum yields a rotational temperatures for the perturbed S of K.
Keywords
This publication has 26 references indexed in Scilit:
- Structure and dynamics of quantum clustersInternational Reviews in Physical Chemistry, 1994
- New approach to the observation of the condensate fraction in superfluid helium-4Physical Review Letters, 1993
- Probing Bose-Einstein condensed atoms with short laser pulsesPhysical Review Letters, 1993
- Mass spectra and time-of-flight distributions of helium cluster beamsThe Journal of Chemical Physics, 1990
- Collective excitations of helium clustersPhysical Review Letters, 1990
- Path-integral Monte Carlo study of low-temperatureclustersPhysical Review Letters, 1989
- The Vibrational Spectroscopy and Dynamics of Weakly Bound Neutral ComplexesScience, 1988
- Infrared spectroscopy at the surface of clusters: SF6 on ArThe Journal of Chemical Physics, 1985
- Metastable excitations of large clusters of 3He, 4He, or Ne atomsThe Journal of Chemical Physics, 1980
- Rotating molecules trapped in pseudorotating cagesJournal of the American Chemical Society, 1980