7 June 2006 Different regimes of viscous melt flow in laser ablation: from clean ablation to nanostructuring
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Proceedings Volume 6261, High-Power Laser Ablation VI; 626109 (2006) https://doi.org/10.1117/12.669515
Event: High-Power Laser Ablation 2006, 2006, Taos, NM, United States
Abstract
The paper reviews recent results on modeling a viscous liquid flow driven by ablation pressure. Based on the analysis of the Navier-Stokes equation various strongly different manifestations of this phenomenon are explained. These are: (i) a "clean" laser ablation, when laser spot has a clean sharp spot border, free from a re-solidified melt dross; (ii) a new form of material removal in laser ablation - expulsion on a poly(methyl methacrylate) target of long (up to 1 mm) nanofibers with a radius about 150-200 nm to the exterior of the spot under the action of a single pulse of KrF excimer laser; and (iii) a new way of laser surface nanostructuring - the formation of a surface foam having a structure of micro-pores interconnected with nanofilaments of diameters about 100 nm as a result of single pulse KrF laser irradiation of biopolymer films.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Vladimir N. Tokarev, Vladimir N. Tokarev, Sylvain Lazare, Sylvain Lazare, Alexander F. H. Kaplan, Alexander F. H. Kaplan, } "Different regimes of viscous melt flow in laser ablation: from clean ablation to nanostructuring", Proc. SPIE 6261, High-Power Laser Ablation VI, 626109 (7 June 2006); doi: 10.1117/12.669515; https://doi.org/10.1117/12.669515
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