Dual-band double-negative-index fishnet metamaterial at millimeter-waves
[EN] An effective negative refractive index (NRI) is demonstrated and experimentally verified for the first two propagation bands of a fishnet-like metamaterial at millimeter-wave frequencies. The dual-band NRI behavior is achieved by engineering the diffraction order (±1, ±1) associated with the in...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2011 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/30839 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/30839 |
| Access Level: | acceso abierto |
| Palabra clave: | Diffraction orders Dual-band Interferometric techniques Internal modes Millimeter wave frequencies Negative refractions Negative refractive index Numerical results Light refraction Millimeter waves Refractive index Metamaterials TEORIA DE LA SEÑAL Y COMUNICACIONES |
| Sumario: | [EN] An effective negative refractive index (NRI) is demonstrated and experimentally verified for the first two propagation bands of a fishnet-like metamaterial at millimeter-wave frequencies. The dual-band NRI behavior is achieved by engineering the diffraction order (±1, ±1) associated with the internal mode supported between holey layers to correspond with the second propagation band. In addition to the experimental interferometric technique that accounts for the handedness of the propagation, numerical results are given to predict the dual-band effective NRI and to confirm dual-band negative refraction for a prism composed of the proposed metamaterial. © 2011 Optical Society of America. |
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