Layer-dependent laser sputtering of BaF2 (111)
- 13 October 1986
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 49 (15) , 930-932
- https://doi.org/10.1063/1.97487
Abstract
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 rates 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.Keywords
This publication has 3 references indexed in Scilit:
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- Stimulated desorptionReports on Progress in Physics, 1984
- Multiphoton-Induced Directional Emission of Halogen Atoms from Alkali HalidesPhysical Review Letters, 1975