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Proceedings Paper

Vibrational relaxation at surfaces
Author(s): Richard R. Cavanagh; J. D. Beckerle; Michael P. Casassa; Edwin J. Heilweil; John C. Stephenson
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Paper Abstract

Time-resolved techniques are applied to issues of vibrational energy transfer at surfaces. Primary attention is given to the relaxation of vibrationally excited diatomic adsorbates on metals. The sensitivity of the vibrational decay rate to the number of metal atoms in the solid is demonstrated. Preliminary results for the transient response of CO on Pt(111) are also reported. This latter measurement demonstrates the recently developed capability of monitoring adsorbate energy transfer processes at well defined surface sites. The observations appear to be consistent with relaxation through the excitation of electron/hole pairs in the substrate.

Paper Details

Date Published: 1 April 1990
PDF: 11 pages
Proc. SPIE 1209, Picosecond and Femtosecond Spectroscopy from Laboratory to Real World, (1 April 1990); doi: 10.1117/12.17893
Show Author Affiliations
Richard R. Cavanagh, National Institute of Standards and Technology (United States)
J. D. Beckerle, National Institute of Standards and Technology (United States)
Michael P. Casassa, National Institute of Standards and Technology (United States)
Edwin J. Heilweil, National Institute of Standards and Technology (United States)
John C. Stephenson, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 1209:
Picosecond and Femtosecond Spectroscopy from Laboratory to Real World
Keith A. Nelson, Editor(s)

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