Mechanisms affecting kinetic energies of laser-ablated materials

Journal Article · Wed May 01 00:00:00 EDT 1996 · Journal of Vacuum Science and Technology, A

DOI:https://doi.org/10.1116/1.580278· OSTI ID:284658

Chen, K R ^[1]; Leboeuf, J N; Wood, R F; Geohegan, D B; Donato, J M; Liu, C L; Puretzky, A A ^[1]

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1. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-8071 (United States)

A dynamic source effect was found to accelerate the plume expansion velocity much higher than that from a conventional free-expansion model. A self-similar theory and a hydrodynamic model are developed to study this effect, which may help to explain experimentally observed high front expansion velocity. Background gas can also affect the kinetic energies. High background gas may cause the ablated materials to go backward. Experimentally observed plume splitting is also discussed. {copyright} {ital 1996 American Vacuum Society}

• Research Organization: Oak Ridge National Laboratory
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 284658
• Report Number(s): CONF-9510385--
• Journal Information: Journal of Vacuum Science and Technology, A, Journal Name: Journal of Vacuum Science and Technology, A Journal Issue: 3 Vol. 14; ISSN 0734-2101; ISSN JVTAD6
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ABLATION
ENERGY BEAM DEPOSITION
HYDRODYNAMICS
IONIZATION
KINETIC ENERGY
LASER RADIATION
MATHEMATICAL MODELS
SELF-SIMILIAR STATES