Speaker
Vladimir Zvorykin
Description
A narrow (30−40 μm in diameter) capillary-like rippled channel finished by a post-channel crown was observed in 2D hydrodynamic interaction regime of 100J@100 ns KrF laser pulses with a translucent PMMA targets at intensities up to 5×1012 W/cm^2. Channel formation mechanism includes self-consistent laser beam filamentation along UV light penetration depth. The modelling experiments with a preliminary drilled capillary channel and Monte Carlo simulations proved that the crown origin might be caused by an electron beam acceleration up to ~100 keV energies, which is much higher than the electron temperature of the plasma corona ~100 eV.
