Göttingen 2025 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 7: Novel Accelerator Concepts II and FELs

AKBP 7.5: Talk

Wednesday, April 2, 2025, 17:15–17:30, ZHG004

Plasma Afterglow Metrology for Laser-Wakefield Accelerators — •Nils Hanold, Marc Osenberg, Paula Sedlatschek, Kamil Naczynski, Edgar Hartmann, Onur Bilen, Natascha Thomas, Jesko Wrobel, Andrew Sutherland, Mirela Cerchez, Constantin Aniculaesei, Thomas Heinemann, and Bernhard Hidding — Institute of Laser- and Plasmaphysics, Heinrich Heine University Düsseldorf

Characterizing the plasma light emitted upon the interaction of a high-power laser with a gas target aims for the development of a non-invasive metrology technique for the complex processes in laser-wakefield accelerators (LWFAs). While integrating the emitted afterglow temporally and spectrally allows obtaining top level information about the interaction, resolving it spectrally and temporally allows extracting further information such as involved ionization levels, laser-plasma interaction strength, dynamics and evolution, to identify and quantify ionization processes along the laser propagation axis, and markers of injection events.

Keywords: afterglow; non-invasive metrology; plasma diagnostics