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Laser-induced surface migration via surface plasmons

✍ Scribed by William C. Murphy; Huang Xi-Yi; Thomas F. George

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
191 KB
Volume
104
Category
Article
ISSN
0009-2614

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✦ Synopsis

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 ox? gen ion of charge -1 adsorbed on aluminum which is exposed to CO2 laser radiation of intensity 1 W/cm *, the velocity of migration (6 1.3 pm/s) is five orders of magnitude greater than the usual thermal velocities observed at room temperature.

Migration of adsorbed particles on a solid surface is an important process in catalytic reactions [l-5].

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