EM Field and Ponderomotive Force Generation by an Ultrashift Intense Gaussian laser pulse in a spatially variable Density Plasma

The interaction of electromagnetic waves (lasers) with plasma is important because of its applications in plasma accelerators, X-ray production, laser fusion, generation of nonlinear effects such as ponderomotive force, which leads to accelerating plasma electrons, by oscillating them. In this paper, we investigate the propagation of Cosh-Gaussian laser beam and generation of ponderomotive force and magnetic field with a given density profile in plasma. By comparing, the diagrams obtained from the magnetic and electric fields, we see that they have a phase difference 􀰗 􀬶. On the other hand, by applying a variable density profile, the magnetic field gradually tends to zero. Pondromotive force diagrams are also drawn.

کلیدواژه های EM Field and Ponderomotive Force Generation by an Ultrashift Intense Gaussian laser pulse in a spatially variable Density Plasma:

Interaction laser- plasma ، Magnetic field ، Cosh-Gaussian beam ، Ponderomotive force.