High-energy particle beams with spin polarization are of importance for several areas of physics, like deep-inelastic scattering or nuclear fusion, and have been investigated extensively in the context of plasma-based accelerators [1]. A recent proof-of-principle experiment at the PHELIX laser by Zheng et al. [2] has shown that the acceleration of polarized ions from laser-plasma interaction is indeed feasible.
The ion acceleration schemes that can be utilized in the context of laser-plasma interaction are, however, limited due to restrictions in the target density [3]. In this talk, we present 3D-PIC simulations investigating the acceleration of polarized ³He ions using Laguerre-Gaussian laser pulses. This approach offers a potential pathway to high-energy, high-polarization ion beams.

[1] L Reichwein et al., arXiv:2411.11621 (2024)
[2] C Zheng et al., arXiv:2310.04184v2 (2024)
[3] L Reichwein et al., Phys. Rev. Accel. Beams 25, 081001 (2022)

laser-plasma interactions,spin polarization,3D PIC Simulation