META 2021, META'12

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On the properties of bulk plasmon-polariton modes in layered superlattices
A. Bruno-Alfonso, E. Reyes-Gómez, Solange B. Cavalcanti, Luiz Eduardo Oliveira

Last modified: 2012-01-03


We have theoretically studied the field intensities of both transversal and longitudinal components of an electromagnetic field incident upon a one-dimensional layered system that alternates air and a metamaterial. Special attention is devoted to frequencies around the electric and magnetic bulk plasmons. It is shown that plasmon polaritons nearby such frequencies display field profiles concentrated in the metamaterial, where the field component parallel to the stacking direction is essentially uniform and dominates the perpendicular one. The dominant role played by the longitudinal field component in the opening of the bulk plasmon-polariton gap near the resonant plasmon frequency is discussed. Above this gap, in the center of the Brillouin zone, the mode is plasmon-like, whereas below the plasmon-polariton gap it is essentially a photonic mode.


photonic crystals,metamaterial,plasmon polaritons