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Ablation mechanism study on metallic materials with a 10 ps laser under high fluence

Laser Group at Liverpool > Ablation mechanism study on metallic materials with a 10 ps laser under high fluence

Abstract: Single shot ablation of metallic materials of aluminium, titanium alloy (Ti6Al4V) and gold has been studied with 10 picoseconds (ps) laser pulses experimentally and theoretically. The ablation rate variation at high fluence was explained by a simplified predictive model based on critical-point phase separation (CPPS) theory. A comparison between experimental and numerical results inferred that CPPS may well be the dominant ablation mechanism for high fluence laser ablation at 10 ps laser duration.

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