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State-resolved dynamics of infrared photodesorption of CO from Ag(111)

  • Brookhaven National Laboratory

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

The primary concern of this work is desorption induced by photon energies well below the work function which is nominally assumed to occur via a thermally activated process. Desorption results from random surface atom displacements which deposit vibrational energy in the absorbate metal bond in excess of the binding energy. The desorption is highest at the maximum surface temperature (MST) induced by the laser pulse which can be determined with reasonable accuracy from a classical heat-diffusion model. As a result 'thermally' desorbed molecules are expected to have internal and translational energy distributions characteristic of MST. In this work, we present state resolved measurements for IR photodesorption of CO physiosorbed on a Ag(111) surface.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages298-309
Number of pages12
StatePublished - 1995
EventLaser Techniques for Surface Science II - San Diego, CA, USA
Duration: Jul 12 1995Jul 14 1995

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2547
ISSN (Print)0277-786X

Conference

ConferenceLaser Techniques for Surface Science II
CitySan Diego, CA, USA
Period07/12/9507/14/95

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