SYMPOSIA PAPER Published: 01 January 1988

Wavelength Dependence of Laser-Induced Sputtering from the (111) Surface of BaF


Using blue tunable pulse laser radiation of low fluence, we have investigated laser-induced sputtering from cleaved BaF2 (111) surfaces under ultrahigh vacuum conditions. Timecorrelated with the laser pulses we observed the positiveions Ba+, Ba++, (BaF)+, and F+. Practically no negative ions were found. Neutral atomic fluorine (F°) was desorbed abundantly. A pulse correlation of F° as well as the relative amount of F° and F+ could not be established at this stage. The emission yield of all positive ions as well as of F° was strongly wavelength dependent and showed a broad resonance around 2.9 eV.

Author Information

Reif, J
Fallgren, H
Chalmers Institute of Technology, Göteborg, Sweden
Cooke, WE
University of Southern California, Los Angeles, CA
Matthias, E
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Developed by Committee: F01
Pages: 506–517
DOI: 10.1520/STP18587S
ISBN-EB: 978-0-8031-5032-4
ISBN-13: 978-0-8031-4477-4