Optimizing electron acceleration in vacuum using Hermite-Sinh-Gaussian laser beams and magnetic wigglers

Abstract Improving the efficiency of electron acceleration in a vacuum presents a significant challenge in sophisticated laser-driven acceleration methodologies. This research examines the combined effects of Hermite-Sinh-Gaussian (HShG) laser beams (laser electric field amplitude, Hermite polynomial mode index, Decentered parameter of Sinh function) and magnetic wigglers (wiggler magnetic field amplitude, wiggler field propagation constant) on electron dynamics to facilitate high-energy acceleration. The distinct intensity and phase distribution of HShG beams alter the trajectory of electrons, facilitating effective energy transfer. The periodic magnetic field of the wiggler enhances resonance conditions, thereby sustaining prolonged interactions between electrons and the laser field. The numerical analysis indicates that the integration of these two mechanisms markedly enhances the relativistic factor ( γ ) of electrons, resulting in greater energy gains. The findings demonstrate that customized laser beam configurations and external magnetic fields can enhance laser-driven acceleration in vacuum, presenting a viable strategy for future compact accelerators. This study offers insights into optimizing acceleration efficiency for high-energy physics applications, free-electron lasers, and advanced radiation sources.