Acceleration of spin-polarized proton beams via two parallel laser pulses

We present a setup for highly polarized proton beams using two parallel propagating laser pulses that have carrier envelope phase difference of $\pi$. This mechanism is examined utilizing particle-in-cell simulations and compared to single-pulse commonly used magnetic vortex acceleration. find the use dual-pulse allows peak energies 124 MeV good angular spread with normalized vector potential $a_0 = 100$. Compared single pulse, we further observe higher polarization accelerated bunch.