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Author Bullock, A. B. ♦ Bolton, P. R.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ PLASMA PHYSICS AND FUSION ♦ ALUMINIUM ♦ LASER-PRODUCED PLASMA ♦ ABLATION ♦ THIN FILMS ♦ IONIZATION ♦ VELOCITY
Abstract A study of laser-induced back ablation of aluminum thin film targets with picosecond laser pulses is reported. Ablated plume edge velocities are studied as a function of film thickness, laser pulse width, and incident laser fluence. Edge velocity results are compared to a model of total transmitted fluence incident at the substrate/film interface. A model including laser-induced avalanche ionization and multiphoton ionization mechanisms in the substrate shows a transmitted fluence limit which is consistent with observed edge velocity limits. {copyright} {ital 1999 American Institute of Physics.}
ISSN 00218979
Educational Use Research
Learning Resource Type Article
Publisher Date 1999-01-01
Publisher Place United States
Journal Journal of Applied Physics
Volume Number 85
Issue Number 1


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