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Type: Artigo de periódico
Title: Plasmon polaritons in photonic metamaterial Fibonacci superlattices
Author: Reyes-Gomez, E
Raigoza, N
Cavalcanti, SB
de Carvalho, CAA
Oliveira, LE
Abstract: We study the properties of plasmon polaritons in one-dimensional photonic metamaterial superlattices resulting from the periodic repetition of a Fibonacci structure. We assume the system made up of positive refraction and metamaterial layers. A Drude-type dispersive response for both the dielectric permittivity and magnetic permeability of the left-handed material is considered. Maxwell's equations are solved for oblique incidence by using the transfer-matrix formalism. Our results show that the plasmon-polariton modes are considerably affected by the increasing of the Fibonacci-sequence order of the elementary cell. The loss of the long-range spatial coherence of the electromagnetic field along the growth direction, which is due to the quasiperiodicity of the elementary cell, leads to the splitting of the plasmon-polariton frequencies, resulting in a Cantor-type frequency spectra. Moreover, the calculated photonic dispersion indicates that if the plasma frequency is chosen within the photonic < n(w)> = 0 gap then the plasmon-polariton modes behave essentially as pure plasmon modes.
Country: EUA
Editor: Amer Physical Soc
Citation: Physical Review B. Amer Physical Soc, v. 81, n. 15, 2010.
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.81.153101
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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