Abstract
A most active pursuit in the field of surface physics has been to develop techniques by which dynamics at surfaces can be resolved on the time-scale of energy transfer within the adsorbate-substrate complex, i.e., subpicosecond. Recently, there has been some progress in ultrafast studies of energy relaxation at sur- faces.[1] Here, we report the first subpicosecond measurement of the time-evolution of a surface chemical reaction. We report that CO molecules desorb from a Cu(111) within 325 fsec after irradiation with 100 fsec, 2 eV photon energy laser pulses.
© 1992 IQEC
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