Suppressing longitudinal double-layer oscillations by using elliptically polarized laser pulses in the hole-boring radiation pressure acceleration regime

Abstract

It is shown that well collimated mono-energetic ion beams with a large particle number can be generated in the hole-boring radiation pressure acceleration regime by using an elliptically polarized laser pulse with appropriate theoretically determined laser polarization ratio. Due to the $\mathbf{J}\times \mathbf{B}$ effect, the double-layer charge separation region is imbued with hot electrons that prevent ion pileup, thus suppressing the double-layer oscillations. The proposed mechanism is well confirmed by Particle-in-Cell simulations, and after suppressing the longitudinal double-layer oscillations, the ion beams driven by the elliptically polarized lasers own much better energy spectrum than those by circularly polarized lasers.

6 pages, 5 figures, Phys. Plasmas (2013) accepted

References in corpus (4)

• Hole boring in a DT pellet and fast ion ignition with ultra-intense laser pulses
• Fast ignition of inertial fusion targets by laser-driven carbon beams
• Fast ignition of fusion targets by laser-driven electrons
• Ab Initio Simulations of Dense Helium Plasmas

Cited by in corpus (8)

• Monte-Carlo approach to calculate the proton stopping in warm dense matter within particle-in-cell simulations
• Suppression of transverse ablative Rayleigh-Taylor-like instability in the hole-boring radiation pressure acceleration by using elliptically polarized laser pulses
• Dense blocks of energetic ions driven by multi-petawatt lasers
• Kinetic and finite ion mass effects on the transition to relativistic self-induced transparency in laser-driven ion acceleration
• Generation of high-energy monoenergetic heavy ion beams by radiation pressure acceleration of ultra-intense laser pulses
• Monte-Carlo approach to calculate the ionization of warm dense matter within particle-in-cell simulations
• Identifying the source of super-high energetic electrons in the presence of pre-plasma in laser-matter interaction at relativistic intensities
• The controllable super-high energetic electrons by external magnetic fields at relativistic laser-solid interactions in the presence of large scale pre-plasmas