| Autor: |
Klotz, Geoffroy, Mallejac, Nicolas, Enoch, Stefan |
| Přispěvatelé: |
CEA Le Ripault (CEA Le Ripault), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut FRESNEL (FRESNEL), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), Klotz, Geoffroy |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
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| Popis: |
Electromagnetic meta-materials composed of a 3-D lattice of small conducting resonators can be convenient to reach interesting permittivity and permeability levels, especially for applications such as invisibility cloaking or superlenses. In this article, we present a fast dipolar expansion of meta-atoms based on the far-field extracted from a simulation or experimentation. Using a dipole approximation of the field scattered by a single inclusion, we develop a homogenization method based on the Clausius-Mossotti relation, taking into account the interactions between meta-atoms. We then establish a generalization of the Clausius-Mossotti relation for bi-anisotropic meta-materials to extend our methodology to a more general class of meta-atoms. Some examples are given based on full-wave simulations of a meta-atom, and a comparison with other approaches allows an evaluation of the relevance of this methodology. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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