Laser-produced post-pulse crater formation in solids observed in PALS facility interaction experiment

I. Ya. Doskach; Sergei Yu Gus'kov; Karel Jungwirth; Milan Kalal; Andrzej Kasperczuk; Bozena Kralikova; E. Krousky; Jiri Limpouch; Karel Masek; Miroslav Pfeifer; T. Pisarczyk; Karel Rohlena; Vladislav B. Rozanov; Jiri Skala; Jiri Ullschmied

doi:10.1117/12.536517

12 December 2003 Laser-produced post-pulse crater formation in solids observed in PALS facility interaction experiment

I. Ya. Doskach, Sergei Yu Gus'kov, Karel Jungwirth, Milan Kalal, Andrzej Kasperczuk, Bozena Kralikova, E. Krousky, Jiri Limpouch, Karel Masek, Miroslav Pfeifer, T. Pisarczyk, Karel Rohlena, Vladislav B. Rozanov, Jiri Skala, Jiri Ullschmied

Author Affiliations +

Proceedings Volume 5228, ECLIM 2002: 27th European Conference on Laser Interaction with Matter; (2003) https://doi.org/10.1117/12.536517
Event: ECLIM 2002: 27th European conference on Laser Interaction with Matter, 2002, Moscow, Russian Federation

Abstract

Results from PALS facility laser-massive Al target interaction experiments are reported. Main attention is devoted craters formation under the action of laser pulses of various energy (from 100 J up to 600 J), intensity (from 10¹³ W/cm² up to 10¹⁵ W/cm²), laser wavelength (0.438 μm and 1.315 μm), and focal beam radius (from 35 μm up to 600 μm). Crater replicas were made of wax and their depths and radii were subsequently obtained by microscopy measurements. Duration of the laser-pulse-initiated shock wave propagation into the targets was much longer than that of the laser pulse itself (400 ps). This was an important feature of the experimental arrangement. Theoretical model of the post-pulse crater formation by the shock wave propagating and decaying in solids after the end of the laser pulse is presented and applied for explanation of the results obtained in experiments.

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I. Ya. Doskach, Sergei Yu Gus'kov, Karel Jungwirth, Milan Kalal, Andrzej Kasperczuk, Bozena Kralikova, E. Krousky, Jiri Limpouch, Karel Masek, Miroslav Pfeifer, T. Pisarczyk, Karel Rohlena, Vladislav B. Rozanov, Jiri Skala, and Jiri Ullschmied "Laser-produced post-pulse crater formation in solids observed in PALS facility interaction experiment", Proc. SPIE 5228, ECLIM 2002: 27th European Conference on Laser Interaction with Matter, (12 December 2003); https://doi.org/10.1117/12.536517

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