Stable Laser-Driven Proton Beam Acceleration from a Two-Ion-Species Ultrathin Foil
Stable Laser-Driven Proton Beam Acceleration from a Two-Ion-Species Ultrathin Foil
By using multi-dimensional particle-in-cell simulation, we present a new regime of stable proton beam acceleration which takes place when a two-specie shaped foil is illuminated by a circularly polarized laser pulse. It is observed that the lighter protons are nearly-instantaneously separated from the heavier carbon ions due to the charge-to-mass …