부산대학교 도서관

We report on the all-optical tailoring of a gas target via a two pulse laser sequence for use in laser driven shock acceleration. A single infrared pulse drove a blast wave into the target, creating a steepened density profile, while a second drive pulse followed to generate energetic ion beams. Simulations confirm the sensitivity of the target to variations in pre-pulse energy in determining the outcome of the laser interaction. For a narrow range of pre-pulse energies, the main pulse launches an electrostatic collisionless shock into the target, capable of forward ion reflection. [ABSTRACT FROM AUTHOR]