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Laguerre–Gaussian pulses for spin-polarized ion beam acceleration
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- Journal:
- High Power Laser Science and Engineering / Volume 14 / 2026
- Published online by Cambridge University Press:
- 18 February 2026, e3
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- Article
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Polarized particle sources have a plethora of applications, ranging from deep-inelastic scattering to nuclear fusion. One crucial challenge in laser–plasma interaction is maintaining the initial polarization of the target. Here, we propose the acceleration of spin-polarized helium-3 from near-critical density targets using high-intensity Laguerre–Gaussian laser pulses. Three-dimensional particle-in-cell simulations show that magnetic vortex acceleration with these modes yields high polarization at the
$90\%$ level, while also providing low-divergence beams.
