SURFACE AND GUIDED WAVE POLARITON MODES OF MAGNETOPLASMA EFFECTIVE FILMS IN THE VOIGT GEOMETRY

摘要

A theoretical discussion of the retarded electromagnetic modes of an effective magnetoplasma film is described. The effective film is characterized by an effective dielectric tenser, and we deal with the Voigt configuration (propagation transverse to the applied magnetic field) for both a symmetric and an asymmetric film. The numerical results show that for a symmetric effective film, dispersion curves for both surface modes and guided waves are reciprocal, omega(+k) = w(-k), but the field profiles are different for +k and -k. The dispersion curves for the asymmetric effective film are non-reciprocal, and the field profiles are different. Numerical illustrations are given for a GaAs/AlAs superlattice. [References: 25]