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12 October 2021 Atomistic simulations of nanoparticle generation and surface modification by short pulse laser ablation in liquid environment
Leonid V. Zhigilei
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Proceedings Volume 11910, Laser-Induced Damage in Optical Materials 2021; 1191003 (2021) https://doi.org/10.1117/12.2601794
Event: SPIE Laser Damage, 2021, Online Only
Abstract
The ability of short pulse laser ablation in liquids to produce clean colloidal nanoparticles and unusual surface morphology and microstructure has been employed in a range of practical applications. The results of large-scale molecular dynamics simulations help to uncover the key processes that control the structure of laser-modified surfaces and nanoparticle size distributions generated by pulsed laser ablation in liquids. The simulations are performed for one-component metals, bilayer thin films and alloy targets. The predictions of the simulations include the emergence of Rayleigh–Taylor hydrodynamic instability at the interface between ablation plume and liquid environment, as well as the limited elemental mixing in the colloidal nanoparticles generated by laser ablation of bilayer films.
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Leonid V. Zhigilei "Atomistic simulations of nanoparticle generation and surface modification by short pulse laser ablation in liquid environment", Proc. SPIE 11910, Laser-Induced Damage in Optical Materials 2021, 1191003 (12 October 2021); https://doi.org/10.1117/12.2601794
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KEYWORDS
Laser ablation
Liquids
Nanoparticles
Optical simulations
Pollution control
Laser processing
Metals
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