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

Volume

34

Issue

6

fYear

2006

Firstpage

2572

Lastpage

2578

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;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2006.888106

Filename

4032886