Dresden 2026 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 8: Poster AKBP
AKBP 8.4: Poster
Mittwoch, 11. März 2026, 09:30–11:00, P4
Programmable Focal Elongation and Shaping of High-Intensity Laser Pulses using Adaptive Optics — •Peter Blum1, Anna Puchert1, Emily Archer1, Sören Jalas1, Spencer W. Jolly2, Jens Osterhoff1,3, Wim P. Leemans1, Manuel Kirchen1, Andreas R. Maier1, and Rob J. Shalloo1 — 1Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany — 2Service OPERA-Photonique, Université libre de Bruxelles (ULB), Brussels, Belgium — 3now at Lawrence Berkeley National Laboratory
Controlling the intensity distribution of laser pulses in the focal region is becoming increasingly important across many areas of high-intensity laser-matter interactions. Rather than focusing light to a single longitudinal point, like a parabolic mirror, it is often desirable to focus light to a line segment along the optical axis, allowing for the generation of extended regions of high laser intensity. Optics for generating such intensity structures, sometimes referred to as axioptics, include the axicon, the axilens, and the more recently proposed axiparabola.
In laser-plasma accelerators, axioptics are essential for forming optically-generated plasma waveguides and for enabling advanced plasma acceleration techniques, including dephasingless wakefield acceleration. Current solutions of tailoring the focal region rely on custom off-axis solutions or diffractive/refractive optics which can be expensive and senstive misalignment and/or aberrations. Here, we present an alternative approach for programmatically generating and shaping extended regions of high intensity, utilising common optical components; an adaptive optic and an off-axis parabolic mirror.
Keywords: Laser Plasma Acceleration; Optical Tailoring; Axiparabola; Plasma Channels; Flying Focus