Parametric generation of surface deformations in laser interaction with overdense plasmas

Study of Laser-Hole Boring into Overdense Plasmas.

Dispersion and transport of energetic particles due to the interaction of intense laser pulses with overdense plasmas.

We study the angular distribution of relativistic electrons generated through laser-plasma interaction with pulse intensity varying from 10(18) W/cm2 up to 10(21) W/cm2 and plasma density ranging from 10 times up to 160 times critical density with the help of 2D and 3D particle-in-cell simulations. This study gives clear evidence that the divergence of the beam is an intrinsic property of the i...

On the Generation of Strong Magnetic Fields in the Interaction of Ultraintense Short Laser Pulse with an Overdense Plasma Target

Fast proton bunch generation in the interaction of ultraintense laser pulses with high-density plasmas

Energetic proton acceleration from concave targets, the fronts of which were irradiated with 40 fs laser pulses with an intensity of 10 W/cm, has been studied as a function of the depth of the concave shape. Three kinds of targets, a triangular concave target, a circular concave target and a parabolic concave target are considered. When the depth of the concave shape was varied, the peak proton...

Intense laser-driven electrostatic shocks and its acceleration of ions in overdense plasmas

We investigated numerically the formation and propagation of the electrostatic shocks in overdense plasmas irradiated by intense ultrashort laser pulses. The dependence of the initial shock speeds on the parameters of the plasma and the laser is explained by invoking the modified momentum conservation model. The acceleration of ions by the shocks is also discussed.