Forward recursion approach of electromagnetic wave propagation characteristics in a slab of inhomogeneous magnetoplasma

Abstract

Propagation characteristics of electromagnetic radiation incident on an inhomogeneous magnetoplasma slab near a good conducting metallic surface is investigated. The inhomogeneous plasma slab is divided into thin layers (sub-cells) in order to allow for treating each plasma sub-cell as a homogeneous medium. A global matrix is formed upon matching the fields at all interfaces, which allows for the analytical determination of the reflection, absorption and transmission coefficients. For matching the tangential fields at the metallic surface, an impedance (Leontovich) boundary condition has been used. Propagation characteristics are calculated numerically for a set of parameters that may be suitable for many applications including stealth plasma. Numerical results show resonant absorption peaks near the electron cyclotron frequency that increase by increasing the equilibrium plasma density. They also show absorption enhancement by increasing the plasma slab width.

Collisional and resonance absorption of electromagnetic waves in a weakly collisional, inhomogeneous magnetoplasma slab

“…where ω is the angular frequency of the incident wave, µ m , m , d m , ε m are, respectively, the m th sub-slab permeability, permittivity, width, and dielectric function. All necessary information to characterize the propagation of electromagnetic waves across the inhomogeneous plasma slab is contained in equations (1)(2)(3)(4)(5).…”

“…T HE interaction of electromagnetic waves (EM-Waves) with a plasma slab has drawn the attention of researchers for decades for their wide applications in several fields. Recently, the propagation of EM-waves in cold plasma has gained a major interest due to the vast applications of atmospheric pressure plasma as reflectors or absorbers of EMwaves, which plays a dominant role in many applications that include stealth plasma technology [1]- [4], reentry blackout [5]- [10], communication and space plasma [11]- [15] as well as industrial material switches, absorbers and filters [16]- [20].…”