Photonic band structure evolution of a honeycomb lattice in the presence of an external magnetic field

ABSTRACT: A standard plane-wave expansion technique is used to investigate the evolution of the photonic band structure of a two-dimensional honeycomb lattice composed by cylindrical shell rods with dielectric permittivities 1 and 2, and embedded in a background with permittivity 3. We have considered the effect of dispersive dielectric responses as well as the influence of an externally applied magnetic field aiming to obtain efficient tunable bandgaps. Present results suggest that a combination of a doped semiconductor constituent with an anisotropic geometry, which breaks symmetry and unfolds degeneracies, provides an efficient realization of photonic systems with tunable bandgaps.

• Autores: Oliveira, Luiz Eduardo; Duque Echeverri, Carlos Alberto; Porras Montenegro, Nelson; Cavalcanti, Solange Bessa
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2009
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: eng
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/8631
• Acceso en línea: http://hdl.handle.net/10495/8631
• Palabra clave: Campos magnéticos; Magnetic Fields; Fotones; Photons; Simetría (Física); Symmetry (physics); Semiconductores; Semiconductors; Banda fotónica; Red de panal bidimensional; http://aims.fao.org/aos/agrovoc/c_8e15773e
• Rights: openAccess
• License: https://creativecommons.org/licenses/by-nc-nd/4.0/