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Non-local effective medium of metamaterial | | Jensen Li
; J. B. Pendry
; | | Date: |
15 Jan 2007 | | Subject: | Materials Science | | Abstract: | In this paper, we investigate the effect of spatial dispersion on a double-lattice metamaterial which has both magnetic and electric response. A numerical scheme based on a dipolar model is developed to extract the non-local effective medium of the metamaterial. We found a structure-induced bianisotropy near the resonance gap even if the artificial particles are free from cross-coupling. A cross-coupled resonance also results from spatial dispersion and it can be understood using a Lorentz frequency dispersion model. The strength of the cross-coupled resonance depends on the microstructure and it is larger at a higher normalized frequency. | | Source: | arXiv, cond-mat/0701332 | | Services: | Forum | Review | PDF | Favorites | |
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