2007/01/15 by Jensen Li, J. B. Pendry, Li, Jensen +1
Engineering · Materials Science · #Advanced Antenna and Metasurface Technologies #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Metamaterials and Metasurfaces Applications #Plasmonic and Surface Plasmon Research
paper · pdf · doi:10.48550/arxiv.cond-mat/0701332
openalex publication_date 2007/01/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.