MAGNETOPLASMON-POLARITON MODES OF FINITE CANTOR-TYPE HETEROSTRUCTURES

By using local theory and taking into account retardation, we investig ate the plasmon-polariton modes of a finite Canter-type heterostructur es which are composed of two alternating materials with their thicknes ses following Canter sequence. The effects of an external magnetic fie ld applied parallel to the interfaces are considered. We find that the modes have fractal structure due to the special geometry of the syste m, and the dispersion relations of the modes are strikingly modified b q the external magnetic field. Some new modes appear because of the ap plication of the field. By plotting the profiles of the amplitudes of the electric field, we also investigate the localization properties of the modes.