SYMPOSIA PAPER Published: 01 January 1988

Layer-Dependent Laser Sputtering of BaF (111)


Laser-induced sputtering from the (111) surface of BaF2 was investigated under ultrahigh vacuum conditions, applying fluences well below the macroscopic damage threshold. Measurement of the wavelength dependent desorption of Ba+ indicates that Ba+ is emitted from two chemically different surroundings at the surface. For a fixed wavelength, the emission rate of Ba+ and F+ as functions of time show a distinct anticorrelation, confirming the existence of two different chemical states of the surface, and suggesting that the sputtering takes place layer by layer.

Author Information

Reif, J
Fallgren, H
Nielsen, HB
Matthias, E
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Developed by Committee: F01
Pages: 518–530
DOI: 10.1520/STP18588S
ISBN-EB: 978-0-8031-5032-4
ISBN-13: 978-0-8031-4477-4