TRANSVERSE MAGNETO-PLASMA WAVE PROPAGATION IN A PERIODIC STRUCTURE

The propagation of transverse magneto-plasma waves in an absorptive plasma whose density is spatially periodic has been investigated. Numerical results are presented where the real and imaginary parts of the wave vector are studied as a function of the electronic collision frequency for a metal-semiconductor sandwich structure. These results show that scattering can play a major role in determining the dispersion relationship of plasma waves in a periodic structure. The source of the effects introduced by scattering is discussed, together with some comments concerning their implications for a proposed tunable microwave filter.