2015/02/26 by N. Lemos, Jessica Shaw, J. L. Shaw +6
Physics and Astronomy · #Advanced X-ray Imaging Techniques #FOS: Physical sciences #Laser-Matter Interactions and Applications #Laser-Plasma Interactions and Diagnostics #Plasma Physics (physics.plasm-ph) #physics.plasm-ph
paper · pdf · doi:10.48550/arxiv.1502.07764
AAC 2014
arxiv created 2015/02/26 · openalex publication_date 2015/02/26 · arxiv updated 2015/03/02 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
In this work, we will show through three-dimensional particle-in-cell simulations that direct laser acceleration in laser a wakefield accelerator can generate sub-femtosecond electron bunches. Two simulations were done with two laser pulse durations, such that the shortest laser pulse occupies only a fraction of the first bubble, whereas the longer pulse fills the entire first bubble. In the latter case, as the trapped electrons moved forward and interacted with the high intensity region of the laser pulse, micro-bunching occurred naturally, producing 0.5 fs electron bunches. This is not observed in the short pulse simulation.