Characteristics of surface plasmon polaritons in ZnO based nanowaveguides

In this paper dispersion characteristics of fundamental surface plasmon polariton modes supported by ZnO (zinc oxide) strip and slab waveguides were studied. It is observed from the dispersion studies that Ga:ZnO strip waveguide supports four fundamental modes which are non-degenerate in nature. The guiding properties of waveguide suggest ZnO films with high carrier concentration as a good substitute for metals in future integrated optoelectronic devices.