Collisional effects on the electrostatic shock dynamics in thin-foil targets driven by an ultraintense short pulse laser

30 Jul 2020 Sundström Andréas Gremillet Laurent Siminos Evangelos Pusztai István

We numerically investigate the impact of Coulomb collisions on the ion dynamics in high-$Z$, solid density caesium hydride and copper targets, irradiated by high-intensity ($I\approx2{-}5\times10^{20}{\rm\,Wcm^{-2}}$), ultrashort (${\sim}10{\rm\,fs}$), circularly polarized laser pulses, using particle-in-cell simulations. Collisions significantly enhance electron heating, thereby strongly increasing the speed of a shock wave launched in the laser-plasma interaction... (read more)

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