Propagation of electromagnetically generated wake fields in inhomogeneous magnetized plasmas

Abstract

Generation of wake fields by a short electromagnetic pulse in a plasma with an inhomogeneous background magnetic field and density profile is considered, and a wave equation is derived. Transmission and reflection coefficients are calculated in a medium with sharp discontinuities. Particular attention is focused on examples where the longitudinal part of the electromagnetic field is amplified for the transmitted wave. Furthermore, it is noted that the wake field can propagate out of the plasma and thereby provide information about the electron density profile. A method for reconstructing the background density profile from a measured wake field spectrum is proposed and a numerical example is given.

Emergence of Classicality from Initial Quantum World for Dissipative Optical Waves

“…Non-zero conductivity in a medium is, in general, responsible for the dissipation of light waves. The recent increasing interest in quantum behaviors of light waves and their reduction to classicality in dissipative media has accompanied active research on quantum optical properties of materials through advanced computational resources and developed algorithmic tools [2][3][4][5][6][7][8][9].…”