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arXiv · 1007.5415

Ultrafast laser induced surface modification in absence of non-thermal melting and evaporation

G. D. Tsibidis·M. Barberoglou·P. A. Loukakos·E. Stratakis·C. Fotakis
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Abstract

The present paper elucidates the physical mechanism that accounts for the principal/primary stages of the structuring process taking place upon irradiation of a conductive solid with multiple identical femtosecond laser pulses, based on the consideration of a hybrid theoretical model. Heat transfer along with hydrodynamics simulations demonstrate that it is possible to create morphology change conditions by solely exploiting capillary effects, in the absence of either non-thermal melting or evaporation. Simulation results, confirmed by experiments, reveal the intermediate surface modification stage acting as a predecessor of microcones formation.

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G. D. Tsibidis, M. Barberoglou, P. A. Loukakos, E. Stratakis, C. Fotakis. 2010-07-30. Ultrafast laser induced surface modification in absence of non-thermal melting and evaporation. https://arxiv.org/abs/1007.5415

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