Femtosecond laser desorption of molecularly adsorbed oxygen from Pt(111)
- 27 September 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 71 (13) , 2094-2097
- https://doi.org/10.1103/physrevlett.71.2094
Abstract
Desorption of molecularly adsorbed from Pt(111) by 620 nm femtosecond laser pulses shows a nonlinear fluence dependence of the yield and a subpicosecond response time. The measurements were carried out by means of a two-pulse correlation scheme using a pulse counting quadrupole mass spectrometer. These results can be understood with a model involving multiple reexcitations of the adsorbate by photogenerated carriers.
Keywords
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