Mr. Pavel Janecka Profile

Pavel Janecka

at ELI Beamlines

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Proceedings Article | 18 April 2021 Presentation + Paper

Ion acceleration enhancement by laser-pulse shaping via plasma shutter

M. Matys, S. Bulanov, M. Kecova, M. Kucharik, M. Jirka, P. Janecka, J. Psikal, J. Nikl, J. Grosz, G. Korn, O. Klimo

Proceedings Volume 11779, 117790Q (2021) https://doi.org/10.1117/12.2589096

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In this work we investigated the use of a plasma shutter in the form of a thin foil for laser-driven ion acceleration enhancement. It is shown with the help of 3D particle-in-cell simulations that the laser pulse intensity can be increased and its profile steepened after burning through the plasma shutter. The enhanced intensity profile has a positive effect on the subsequent ion acceleration from the main foil, significantly increasing the maximal ion energy. The pre-expansion of the plasma shutter caused by prepulses is investigated using 2D hydrodynamic simulations. A scheme using a double plasma shutter configuration (the first one filtering out the prepulses and the second one shaping the main pulse) is proposed.

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