Electrical tuning of refraction in a two-dimensional photonic crystal infilled with a liquid crystal
We study a novel electro-optic structure with potential applications for ray steering, optical multiplexers, logic gates or switches. Our idea is based on the electrical tuning of refraction in a two-dimensional photonic crystal infilled by a liquid-crystal, with a direct-current electric field appl...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2008 |
| País: | México |
| Institución: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Redalyc-INAOE |
| OAI Identifier: | oai:redalyc.org:57016053001 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=57016053001 |
| Access Level: | acceso abierto |
| Palabra clave: | Física, Astronomía y Matemáticas liquid crystals Photonic crystals optical properties |
| Sumario: | We study a novel electro-optic structure with potential applications for ray steering, optical multiplexers, logic gates or switches. Our idea is based on the electrical tuning of refraction in a two-dimensional photonic crystal infilled by a liquid-crystal, with a direct-current electric field applied parallel to the cylinders. Using a two-step homogenization process, we show that, for sufficiently low frequencies, this structure can be represented by two field-dependent effective refractive indices. We demonstrate that the direction of the ordinary and extraordinary refracted rays can be sensitively tuned by varying the magnitude of the applied field. |
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