SMuK 2023 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 12: Poster II

P 12.16: Poster

Mittwoch, 22. März 2023, 17:30–19:00, HSZ EG

Ion emission of various materials from laser plasmas using a pre-pulse — •Qëndresa Ibraimi, Lars Torben Schwabe, Jan Riedlinger, and Georg Pretzler — Institut für Laser- und Plasmaphysik, Heinrich-Heine-Universität Düsseldorf

Plasmas generated by ultra-short, intense laser pulses have high density and temperature, are far from equilibrium, and their dynamics is dominated by several transient processes. Therefore, the ion dynamics in the early phase of these plasmas is difficult to predict. Here, we present experimental data of the ion emission driven by single-digit-fs laser pulses with intensities up to 10¹⁷ W/cm² focused on various solid targets. The ions reach kinetic energies of several tens of keV and were characterized in terms of species, direction, and energies by a Thomson parabola spectrometer. The differences of the spectra for distinct materials and pre-plasma conditions may allow conclusion on processes during and after laser-surface interaction. These findings are presented and discussed.