Suppression of Anderson localization of light in one-dimensional disordered photonic superlattices

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Autor(es): dc.contributorUniversidad de Antioquia-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de Alagoas-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.creatorReyes-Gómez, E.-
Autor(es): dc.creatorBruno-Alfonso, A.-
Autor(es): dc.creatorCavalcanti, S. B.-
Autor(es): dc.creatorOliveira, L. E.-
Data de aceite: dc.date.accessioned2025-08-21T16:26:22Z-
Data de disponibilização: dc.date.available2025-08-21T16:26:22Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2012-05-07-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevB.85.195110-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/232072-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/232072-
Descrição: dc.descriptionThe localization properties of electromagnetic modes in one-dimensional disordered photonic superlattices are theoretically studied. The multilayered system is considered to be composed of alternating stacks of two different random-thickness slabs, characterized by nondispersive and/or frequency-dependent electric permittivities and magnetic permeabilities. Results for the localization length are evaluated by using an analytical model for weakly disordered systems as well as its general definition through the transmissivity properties of the heterostructure. Good agreement between both results is observed only for small amplitudes of disorder. The critical frequencies at which the localization length diverges are correctly predicted in the whole frequency spectrum by the analytical model and confirmed via the corresponding numerical calculations. The λ2 dependence of the localization length, previously observed in disordered heterostructures made of material of positive refractive indexes, are confirmed in the present work. In addition, new λ4 and λ -4 dependencies of the localization length in positive-negative disordered photonic superlattices are obtained, under certain specific conditions, in the long and short wavelength limits, respectively. The asymptotic behavior of the localization length in these limits is essentially determined by the particular frequency dispersion that characterizes the metamaterial used in the left-handed layers. When the effects of absorption are considered, then a divergence of the localization length is still observed, under some conditions, in the short wavelength limit. © 2012 American Physical Society.-
Descrição: dc.descriptionInstituto de Física Universidad de Antioquia, AA 1226, Medellín-
Descrição: dc.descriptionFaculdade de Ciências UNESP-Universidade Estadual Paulista, 17033-360, Bauru-SP-
Descrição: dc.descriptionInstituto de Física Universidade Federal de Alagoas, Maceió-AL, 57072-970-
Descrição: dc.descriptionInstituto de Física Universidade Estadual de Campinas-UNICAMP, Campinas-SP, 13083-859-
Descrição: dc.descriptionFaculdade de Ciências UNESP-Universidade Estadual Paulista, 17033-360, Bauru-SP-
Idioma: dc.languageen-
Relação: dc.relationPhysical Review B - Condensed Matter and Materials Physics-
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Título: dc.titleSuppression of Anderson localization of light in one-dimensional disordered photonic superlattices-
Tipo de arquivo: dc.typelivro digital-
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