Investigation of optic-phonon—magnetoplasmon-type surface polaritons onn-InSb

Abstract

The coupled-phonon—magnetoplasmon-type surface polaritons at $n$-InSb—air interfaces are studied optically using the attenuated-total-reflection method in the configuration with a magnetic field oriented perpendicular to the sagittal plane. These data are in good agreement with theory exhibiting nonreciprocal behavior, virtual-excitation modes, and bulk-loss modes. Differences between theory and experiment are attributed to surface effects, which indicates that surface-polariton experiments may be useful in detailed studies of these effects.