Göttingen 2025 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 4: AKBP Posters

AKBP 4.12: Poster

Tuesday, April 1, 2025, 16:30–18:00, ZHG Foyer 1. OG

Experimental strategy for diagnostic and parameters control of ARCTURUS high power laser system — •Kamill Naczynski, Mirela Cerchez, Koen Macken, Thomas Heinemann, Marius te Poel, and Bernhard Hidding — Institute of Laser- and Plasmaphysics, Heinrich-Heine-University Düsseldorf, Germany

Plasma-based Laser-Wakefield Accelerators (LWFAs) are a compact source of highly relativistic electron beams. However, fluctuations in the laser-plasma interaction affect the stability and reproducability compared to other acceleration methods. For this reason, the characterization and active control of laser parameters is vital to improve the LWFA performance.

Here, we present an integrated strategy to monitor, characterize and active control the ARCTURUS high power laser beam at the Heinrich Heine University Düsseldorf aiming towards the characterization of pulse duration, spatial and temporal intensity profile and spectrum. The beam pointing and wavefront are measured and actively corrected in a closed loop by an adaptive mirror, specifically including the possibility to employ this system at full-power operation. This setup aims for substantial improvements in reproducability and shot-to-shot stability, in turn enhancing the performance of future LFWA experiments.

Keywords: Active control; Laser-Wakefield Acceleration; Adaptive optics; Beam optimization