Left-handed electromagnetism obtained via nanostructured metamaterials: comparison with that from microstructured photonic crystals
| Autor: | Eric Lheurette, Olivier Vanbésien, Mathias Perrin, X. Melique, T. Decoopman, Didier Lippens, Sophie Fasquel |
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| Rok vydání: | 2005 |
| Předmět: |
Materials science
business.industry Physics::Optics Metamaterial 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Refraction Atomic and Molecular Physics and Optics Optics Electromagnetism Dispersion relation 0103 physical sciences Dispersion (optics) 010306 general physics 0210 nano-technology business Refractive index Diffraction grating Photonic crystal |
| Zdroj: | Journal of Optics A: Pure and Applied Optics. 7:S3-S11 |
| ISSN: | 1741-3567 1464-4258 |
| DOI: | 10.1088/1464-4258/7/2/r01 |
| Popis: | In this work, we review some of the key issues for designing dielectric and metallic arrays in the diffraction or refraction regimes with main emphasis on left-handed electromagnetism. We first discuss dispersion characteristics of periodic dielectric arrays which are structured on the wavelength scale (photonic crystals for optics and electromagnetic band gaps for microwaves) with special attention paid to propagation and refraction effects. Special attention was also paid to the isotropy properties in the Brillouin zone with the prospects of defining a negative refractive index. Then, we considered metallic structures which permit one to synthesize double-negative media with the goal of pushing their operation frequency into the infrared region. For both classes of microstructures and nanostructures, the technological challenges will be addressed by considering air hole arrays in a high refractive index semiconductor substrate and embedded C-shaped and wire metal arrays patterned on low index substrates. |
| Databáze: | OpenAIRE |
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