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 consider...
- 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
Física
Fotónica
Magnetic fields
- Rights
- openAccess
- License
- Atribución-NoComercial-SinDerivadas 2.5 Colombia
| Summary: | 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. |
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