Picosecond laser melting and evaporation of GaAs surfaces
- 15 September 1986
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 49 (11) , 622-624
- https://doi.org/10.1063/1.97059
Abstract
Picosecond laser-induced melting and evaporation of GaAs surfaces are studied. The high reflectivities of molten GaAs observed at fluences above the melting threshold have a wavelength dependence inconsistent with a simple Drude model for a metallic molten GaAs surface. The observations at high laser fluences suggest that the liquid-vapor phase transition is initiated by a fast-expanding, high-density fluid.Keywords
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