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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 5: Plasma Accelerators, Ions I

AKBP 5.3: Vortrag

Dienstag, 10. März 2026, 10:15–10:30, SCH/A117

Pre-Expansion of Nano Rods in 2D PIC Simulations — •Franziska-Luise Paschke-Bruehl^1,2 and Thomas Kluge¹ — ¹Helmholtz-Zentrum Dresden-Rossendorf — ²Technische Universität Dresden

We present a computational study investigating the pre expansion of 10 um long, 100 nm thick nano rods under ultra-high intensity laser contrasts in 2D particle-in-cell simulations. We find that realistic contrasts, modelled by laser systems such as DRACO and ReLaX, lead to significant expansion, hindering the maximum intensities of the laser from seeing an intact rod structure. Based on that, we explore shorter pulse lengths and higher intensities of the laser pulse to ensure an intact rod structure at t_max.This shows that shorter pulse lenghts seem to be a promising alternatvie while higher intensities lead to more pre expansion, despite considering the relativistic critical density.

Keywords: Laser Plasma Acceleration; Particle In Cell Simulations; Heavy Ion Acceleration