Abstract
In this paper, we investigate surface plasmon-polariton propagation at the interface of metal and magnetooptic dielectric semi- inflnite layers where both layers are magnetized. Using magnetic group theory, we calculate scattering matrices for the waveguide sections with three orientations of dc magnetic fleld. Solving analytically the wave equation for the Voigt conflguration, we obtain exact dispersion relation for this waveguide. Numerical examples show that the nonreciprocal phase shift between forward and backward waves can be increased signiflcantly as compared with the case where only the magnetooptic dielectric layer is magnetized.
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