Polarized Electron Beam Generation by Phase-Locked Direct Laser Acceleration Dataset

The simulations were performed using a test-particle approach based on the relativistic Newton–Lorentz equation coupled with the Thomas–Bargmann–Michel–Telegdi (TBMT) equation to describe electron spin precession in electromagnetic fields.The electron trajectories in the laser field were calculated by solving the relativistic Newton–Lorentz equation,using a fourth-order Runge–Kutta numerical method, while the spin evolution was computed using the Boris algorithm.

Compared with particle-in-cell (PIC) simulations, the test-particle model provides detailed information on electron phase-space and spin evolution with significantly reduced computational cost.The dataset focuses on electron acceleration and spin polarization during vacuum DLA after reflection of an ultra-relativistic laser pulse from a plasma mirror. In this process, Brunel electrons emitted from the plasma surface are directly captured by the reflected laser field and accelerated to relativistic energies.