Please use this identifier to cite or link to this item: https://repositorio.ufrn.br/handle/123456789/30163
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dc.contributor.authorAraújo, C.A.A.-
dc.contributor.authorVasconcelos, Manoel Silva de-
dc.contributor.authorMauriz, Paulo Wilson-
dc.contributor.authorAlbuquerque, Eudenilson Lins de-
dc.date.accessioned2020-09-22T18:57:11Z-
dc.date.available2020-09-22T18:57:11Z-
dc.date.issued2012-
dc.identifier.citationARAÚJO, C.A.A.; VASCONCELOS, M.S.; MAURIZ, P.W.; ALBUQUERQUE, E.L.. Omnidirectional band gaps in quasiperiodic photonic crystals in the THz region. Optical Materials, [s.l.], v. 35, n. 1, p. 18-24, nov. 2012. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0925346712002753?via%3Dihub. Acesso em: 08 Set. 2020. http://dx.doi.org/10.1016/j.optmat.2012.06.011.pt_BR
dc.identifier.issn0925-3467-
dc.identifier.urihttps://repositorio.ufrn.br/jspui/handle/123456789/30163-
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.rightsAttribution 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/br/*
dc.subjectPhotonic crystalspt_BR
dc.subjectQuasiperiodic structurespt_BR
dc.subjectMetamaterialspt_BR
dc.subjectOmnidirectional band gapspt_BR
dc.titleOmnidirectional band gaps in quasiperiodic photonic crystals in the THz regionpt_BR
dc.typearticlept_BR
dc.identifier.doi10.1016/j.optmat.2012.06.011-
dc.description.resumoIn this work we calculate the emittance spectra of the electromagnetic radiation normally and obliquely incident (s- and p-polarized modes) on a one-dimensional multilayer quasiperiodic photonic structure made up by layered system of positive (SiO2) and negative (LiTaO3) refractive index materials organized in a quasiperiodic (Fibonacci-like) fashion. We model the negative refractive index material by an effective medium, whose electric permittivity ϵ(ω) is characterized by a phonon-polariton frequency dependent dielectric function, while for the magnetic permeability μ(ω) we have a Drude-like frequency-dependent function. The emittance spectra are determined by means of a well known theoretical model based on Kirchoff’s second law, together with a transfer matrix formalism. Our results shows that the omnidirectional band gaps appear in the THz regime, in well defined frequency intervals independently of the electromagnetic radiation’s polarized modespt_BR
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