Simulation of ultrafast bursts of subpicosecond pulses: In pursuit of efficiency

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Simulation of ultrafast bursts of subpicosecond pulses: In pursuitof efficiency	2 MB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.1063/1.5012758

Title: Simulation of ultrafast bursts of subpicosecond pulses: In pursuit of efficiency
Creator: Povarnitsyn, Mikhail E.
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Levashov, Pavel R.
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Knyazev, Dmitry V.
Date: 2018
DOI: 10.1063/1.5012758
Description: Using a hydrodynamic two-temperature model, we simulate multi-pulse laser ablation of an aluminum bulk target. The results of modeling demonstrate that the effectiveness of the multi-pulse ablation increases an order of magnitude in comparison to a single-pulse ablation of the same energy, while the repetition rate grows up to several GHz because the material surface does not cool down substantially between successive pulses. To prevent the shielding and suppression effects, the fluence of each pulse in the burst should have a subthreshold value to avoid the generation of slow moving ablated condensed-phase nanolayers. The obtained results are consistent with recent experiments on ablation by ultrafast bursts of ultrashort pulses.

Created: 02-12-2020

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Научное управление Simulation of ultrafast bursts of subpicosecond pulses: In pursuit of efficiency