Abstract
In this paper a mathematical model for femtosecond laser ablation of metals is proposed, based on standard two-temperature model connected with 1D hydrodynamic equations. Wide-range equation of state has been developed. The simulation results are compared with experimental data for aluminium and copper. A good agreement for both metals with numerical results and experiment shows that this model can be employed for choosing laser parameters to better accuracy in nanoparticles production by ablation of metals.
Highlights
There is a growing interest in the nanofabrication of materials and their applications in various fields of life and technology, such as electronics, energy generation, health care and storage
In this paper a mathematical model for femtosecond laser ablation of metals is proposed, based on standard two-temperature model connected with 1D hydrodynamic equations
The simulation results are compared with experimental data for aluminium and copper
Summary
There is a growing interest in the nanofabrication of materials and their applications in various fields of life and technology, such as electronics, energy generation, health care and storage. Production of nanoparticles can be done in several ways, one of them is laser ablation.[1] This is an Open Access article published by World Scientific Publishing Company. Nowadays a two-temperature model (TTM) has been widely employed for solving ultrashort laser processing of metals.[2,3,4,5] This continuous model describes the energy transfer inside a metal with two coupled generalized heat conduction equations for the temperatures of the electrons and the lattice. It begins with describing the mathematical model, we construct the appropriate semi-empirical two-temperature equation of state for model. We demonstrate the results for aluminium and copper and compare it with experimental data
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