摘要
Employing colliding-pulse injection has been shown to enable the generation of high-quality electron beams from laser-plasma accelerators.Here,by using test particle simulations,Hamiltonian analysis,and multidimensional particle-in-cell simulations,we lay the theoretical framework for spin-polarized electron beam generation in the colliding-pulse injection scheme.Furthermore,we show that this scheme enables the production of quasi-monoenergetic electron beams in excess of 80%polarization and tens of pC charge with commercial 10-TW-class laser systems.
基金
The original version of the PIC code EPOCH adapted here is funded by UK EPSRC Grant Nos.EP/G054950/1,EP/G056803/1,EP/G055165/1m,and EP/M022463/1.Z.G.would like to thank Rong-Hao Hu for useful discussions.The authors gratefully acknowledge the Gauss Centre for Supercomputing e.V.(https://www.gauss-centre.eu/)for providing computing time used for the FBPIC simulations through the John von Neumann Institute for Computing(NIC)on the GCS Supercomputer JUWELS at the Jülich Supercomputing Centre(JSC).
