Hydrodynamic simulations of metal ablation by femtosecond laser irradiation

By J. Colombier, P. Combis, F. Bonneau, R. L. Harzic, É. Audouard. 2005

257 citations recorded by the source corpus.

Ablation of Cu and Al targets has been performed with 170 fs laser pulses in the intensity range of 10{sup 12}-10{sup 14} W cm{sup -2}. We compare the measured removal depth with 1D hydrodynamic simulations. The electron-ion temperature decoupling is taken into account using the standard two-temperature model. The influence of the early heat transfer by electronic thermal conduction on hydrodynamic material expansion and mechanical behavior is investigated. A good agreement between experimental and numerical matter ablation rates shows the importance of including solid-to-vapor evolution of the metal in the current modeling of the laser matter interaction.

Subfields: Computational Mechanics, Geophysics, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/0d1a1a1cea463cc737dee2d208cba47c977936da

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In Computational Mechanics

1. S. Randolph
2. M. Straw
3. Tresa M. Pollock
4. J. Filevich
5. M. Echlin

In Mechanics of Materials

1. M. Echlin
2. Tresa M. Pollock

Citations in the corpus

• Ultrafast Laser Applications in Manufacturing Processes: A State-of-the-Art Review (2019, unknown): “Colombier et al. incorporated TTM into their hydrodynamic model to account for the electron-ion coupling effect and thus more accurate simulation results on laser ablation were obtained [363].”
• The TriBeam system: Femtosecond laser ablation in situ SEM (2015, background): “Models show that in metals, electron excitation occurs within the first 150 fs in the top 10's of nm of the sample, with material response beginning tens to hundreds of picoseconds later [31,32].”