IUVSTA 15th International Vacuum Congress (IVC-15), AVS 48th International Symposium (AVS-48), 11th International Conference on Solid Surfaces (ICSS-11)
    Surface Science Thursday Sessions
       Session SS3-ThP

Paper SS3-ThP18
Optical and STM-based Excitation of Adsorbed Molecules

Thursday, November 1, 2001, 5:30 pm, Room 134/135

Session: Surface Reactions Poster Session
Presenter: L. Bartels, University of California at Riverside
Authors: L. Bartels, University of California at Riverside
D. Moeller, Columbia University
T.F. Heinz, Columbia University
E. Knoesel, Rowan University
G. Meyer, Free University Berlin, Germany
S.W. Hla, Free University Berlin, Germany
A. Liu, University of California at Riverside
K.H. Rieder, Free University Berlin, Germany
Correspondent: Click to Email
Optical and STM-based excitation of adsorbed molecules Photodesorption and other photochemical reactions have been studied for a long time. Using femtosecond lasers, lately minute details of such surface reactions could be revealed that result in desorbing species. Simultaneously, scanning tunneling microscopy has matured from a pure imaging technique to a highly precise and powerful adsorbate and surface manipulation tool. Here experiments are shown, in which the diffusion of individual adsorbed molecules is induced by electron attachment from an STM tip and by optical excitation. In both cases the resultant diffusive motion on the surface is measured by STM. In both cases diffusion pattern are found, which do not occur under equilibrium thermal conditions.