Description
Laser Dynamics in the Acceleration of Electron Beams
The present Investigation improves previous analyses on the acceleration of electron beams by realistically convenient laser fields.
In the very original paper[1] we modeled the laser as an externally given plane wave structure. We then showed that the uniform laser field combined with a fixed and adequately nonuniform wiggler field is capable to drive efficient acceleration of electrons. Ponderomotive techniques were used and the self consistent space charge effects due to the electronic beam were included, but the laser itself was kept constant.
The next step we are now investigating is the inclusion of the laser dynamics. The subject was partly discussed last year in Vilnius, and a while ago we were able to add critically important ingredients resulting from both the laser's longitudinal and transverse profiles.
Quite in contrast with the acceleration by ultra-short pulses [2] where the acceleration process is mostly local, the laser's long dynamics is critical in extended geometries, where one needs to aim/tune the laser at/with the peak of the wiggler field [1].
[1] I. Almansa et al. (JPP, 2024),
[2] F. Russman, S. Marini, F.B. Rizzato, and I. Caldas (JPP, submitted 2025).