Abstract
Using two-dimensional particle-in-cell simulations, the temporal evolution of the uncompensated charge on an ultra-thin (400 nm) foil target ionized by a relativistically intense laser pulse is studied in detail. The analysis reveals a new dynamic regime of acceleration of light ions/protons that allows particles to experience the maximum acceleration potential created by the laser. As an alternative to the conventional double-layer target, a new target geometry in which the proton energy is enhanced by ≈ 30% is proposed.
Original language | English |
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Article number | 033106 |
Journal | Physics of Plasmas |
Volume | 14 |
Issue number | 3 |
DOIs | |
State | Published - 2007 |