Title :
Hydrodynamic Investigations of Intense Subpicosecond Laser–Matter Interaction
Author :
Holkundkar, Amol R. ; Gupta, N.K. ; Dhareshwar, L.J.
Author_Institution :
Laser & Neutron Phys. Sect., Bhabha Atomic Res. Centre, Mumbai
Abstract :
A model for the interaction of a short laser with matter is presented. The model is based on the solution of wave-propagation equations in a medium with complex dielectric constant. The model is coupled with multigroup radiation hydrodynamics to take into account the space and time evolution of plasma parameters. The complete code is used to analyze various experiments with laser pulse duration varying from 150 fs to 5 ps and laser intensity varying from 1012 W/cm2 to 1017 W/cm2. The model is also used to study the enhancement in absorption with prepulse
Keywords :
plasma dielectric properties; plasma kinetic theory; plasma light propagation; plasma simulation; 150 to 5 fs; complex dielectric constant; laser absorption; multigroup radiation hydrodynamics; subpicosecond laser-matter interaction; wave-propagation equations; Absorption; Dielectric constant; Electrons; Hydrodynamics; Laser modes; Laser theory; Optical pulses; Plasma waves; Solids; X-ray lasers; Dielectric constant; hydrodynamics; laser absorption; laser-produced plasma; matrix method; prepulse effect;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2006.888106
