Laser-induced surface migration via surface plasmons
Abstract
A classical model coupling a charged adspecies to a laser-induced surface plasmon is presented. Such coupling can enhance the rate and specify the direction of surface migration. For the particular case of an atomic oxygen ion of charge -1 adsorbed on aluminum which is exposed to CO2 laser radiation of intensity 1 W/sq cu, the velocity of migration (61.3 micrometers/sec) is five orders of magnitude greater than the usual thermal velocities observed at room temperature.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- December 1983
- Bibcode:
- 1983STIN...8418633M
- Keywords:
-
- Aluminum;
- Charge Transfer;
- Laser Applications;
- Plasmons;
- Surface Reactions;
- Carbon Dioxide Lasers;
- Fluorescence;
- Ion Currents;
- Oxygen Ions;
- Permittivity;
- Velocity Coupling;
- Lasers and Masers