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we present a numerical and experimental study on the characterization of the temporal ablation pressure due to a laser with and without a confinement layer on aluminum target. Based on velocimetry measurements, we have built a large experimental data of laser configurations varying the pulse duration, the energy and the wavelength. Then we are able to reproduce the results with a single numerical model using the lagrangian 1D ESTHER hydrocode in both regimes. Finally we use the code to propose analytical laws for temporal ablation pressure in a large interaction domain for aluminum targets.
Laurent Videau,Emilien Lescoute,Yann Rouchausse,Marine Scius-Bertrand, andLaurent Berthe
"Numerical and experimental laser-induced pressure analysis for both confined and direct configurations", Proc. SPIE PC12939, High-Power Laser Ablation VIII, PC129390W (11 April 2024); https://doi.org/10.1117/12.3014651
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Laurent Videau, Emilien Lescoute, Yann Rouchausse, Marine Scius-Bertrand, Laurent Berthe, "Numerical and experimental laser-induced pressure analysis for both confined and direct configurations," Proc. SPIE PC12939, High-Power Laser Ablation VIII, PC129390W (11 April 2024); https://doi.org/10.1117/12.3014651