AUTHOR=Mendonça J.T. , Vieira J. , Willim C. , Fedele R. 

TITLE=Particle acceleration by twisted laser beams

JOURNAL=Frontiers in Physics

VOLUME=10

YEAR=2022

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2022.995379

DOI=10.3389/fphy.2022.995379

ISSN=2296-424X

ABSTRACT=<p>We consider particle acceleration in plasmas, using twisted laser beams, or beams with orbital angular momentum. We discuss different acceleration processes using two LG laser modes, which include donut wakefield, beat-wave and self-torque acceleration, and compare the respective properties. We show that a self-torque configuration is able to produce azimuthal acceleration and can therefore be considered as an alternative method to produce helical electron beams.</p>