Advanced Shaping of Quasi-Bessel Beams for High-Intensity Applications
Plasma Physics
2026-01-29 v2
Abstract
Quasi-Bessel beams produced by axiparabolas are increasingly used in high-intensity laser applications, yet their longitudinal profiles exhibit unwanted oscillations that limit their effectiveness. Here we identify the physical origin of these distortions and develop a general strategy to control the on-axis intensity of extended focal lines. By combining analytical insight with numerical and experimental validation, we show how both smooth and sharply structured longitudinal profiles can be reliably produced. This establishes a robust framework for tailoring quasi-Bessel beams in regimes relevant to laser-plasma acceleration, advanced photon sources, and other high-field applications.
Keywords
Cite
@article{arxiv.2601.19554,
title = {Advanced Shaping of Quasi-Bessel Beams for High-Intensity Applications},
author = {Jérôme Touguet and Igor Andriyash and Ronan Lahaye and Guillaume Chapelant and Julien Gautier and Lucas Rovige and Cédric Thaury},
journal= {arXiv preprint arXiv:2601.19554},
year = {2026}
}
Comments
8 pages, 9 figures