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Proceedings Paper

Kinetics of laser-induced desorption from nonmetallic surfaces
Author(s): Richard F. Haglund
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Paper Abstract

We present a model for the kinetics of laser-induced desorption of atoms from perfect nonmetallic surfaces, based on recent experiments in alkali halides and compound semiconductors. For the sake of specificity we consider situations in which the photon energy Ehv is less than the bandgap energy Egap, so that the density of bulk electronic excitation created by the laser-surface interaction is small. We show desorption-yield calculations as a function of laser intensity for the case of solids with strong electron-lattice coupling (alkali halides) and weak-coupling solids (compound semiconductors). These distinctive features may allow extrapolation to the case of intermediate coupling which includes many technologically important oxides.

Paper Details

Date Published: 24 June 1993
PDF: 12 pages
Proc. SPIE 1856, Laser Radiation Photophysics, (24 June 1993); doi: 10.1117/12.147609
Show Author Affiliations
Richard F. Haglund, Vanderbilt Univ. (United States)


Published in SPIE Proceedings Vol. 1856:
Laser Radiation Photophysics
Bodil Braren; Mikhail N. Libenson, Editor(s)

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