MAGNETOPLASMON POLARITONS AND RESONANT OPTICAL-TRANSMISSION OF A FINITE RANDOM-THICKNESS SUPERLATTICE IN A MAGNETIC-FIELD

We investigate the magnetoplasmon polariton modes and the propagation of electromagnetic waves in a random-thickness superlattice in a magne tic field. The layer thicknesses are distributed in accordance with a special probability function. The magnetic field is parallel to the in terfaces, and the propagation of the waves is perpendicular to the fie ld. By use of the transfer-matrix method we show that there exists a r esonant optical transmission for waves with particular frequencies. We calculate the dispersion relation of the bulk modes, the resonant fre quencies and the transmission coefficients. The transmission coefficie nts at the resonant frequencies are sensitive to variations in the mag netic field. Possible applications of such a structure in new devices are discussed.