Anomalous Localization of Light in One-Dimensional Disordered Photonic Superlattices

The Anderson localization of light in one-dimensional disordered photonic superlattices is theoretically studied. The system is considered to be made of alternating dispersive and nondispersive layers of different randomthickness. Dispersive slabs of the heterostructure are characterized by Drude-li...

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Autores:
Aristizábal-Giraldo, D
Reyes-Gómez, E
Tipo de recurso:
Fecha de publicación:
2013
Institución:
Universidad EAFIT
Repositorio:
Repositorio EAFIT
Idioma:
eng
OAI Identifier:
oai:repository.eafit.edu.co:10784/14428
Acceso en línea:
http://hdl.handle.net/10784/14428
Palabra clave:
Anderson Localization
Anomalous Phenomenon Brewster
Optical Impedance
Localización De Anderson
Brewster De Fenómenos Anómalos
Impedancia Óptica
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Copyright (c) 2013 D Aristizábal-Giraldo, E Reyes-Gómez
Description
Summary:The Anderson localization of light in one-dimensional disordered photonic superlattices is theoretically studied. The system is considered to be made of alternating dispersive and nondispersive layers of different randomthickness. Dispersive slabs of the heterostructure are characterized by Drude-like frequency-dependent electric permittivities and magnetic permeabilities. Numerical results for the localization length are obtained via an analytical model, only valid in the case of weak disorder, and also through its general definition involving the transmissivity of the multilayered system. Anomalous λ4- and  λ-4-dependencies of the localization length in positive-negative disordered photonic superlattices are obtained, in certain cases, in the long and short wavelength limits, respectively.