Abstract
Theoretical analysis of hybrid plasmon polariton (HPP) wave in a cylindrical conductor–gap–dielectric structure is presented using the quantum hydrodynamic model. Numerical results show the quantum effects, including the Fermi pressure and the Bohm potential have little effect on the dispersion relations of the HPP wave in the cylindrical plasmonic system. We find that the propagation of the HPP wave in the cylindrical CGD structure is very sensitive to the radius of the metal cylinder, the thickness of the gap layer, and the permittivity of the dielectric mediums. These results will be useful for understanding the properties of the hybrid surface waves in cylindrical nanostructures.
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