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arXiv · 2201.11534

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

Lars Reichwein·Markus Büscher·Alexander Pukhov
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Abstract

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

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Lars Reichwein, Markus Büscher, Alexander Pukhov. 2022-01-27. Acceleration of spin-polarized proton beams via two parallel laser pulses. https://doi.org/10.1103/physrevaccelbeams.25.081001

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