Abstract
We propose the split cube in a cage (SCiC) design for application in producing a bulk metamaterial. Applying realistic material data for thin silver films, we observe an immediate convergence of the effective parameters obtained with a number of layers towards the bulk
properties. Results are obtained by two different numerical techniques: the Fourier modal method and the finite integrals method, thus ensuring their validity. The SCiC exhibits a refractive index of −0.6 for frequencies close to the telecommunication bands. The fast convergence of effective parameters allows consideration of the SCiC as a bulk (effectively homogeneous) negative-index metamaterial even for a single layer. The bulk-like nature
together with the cubic symmetry of the unit cell make the SCiC a promising candidate for potential applications at telecommunication frequencies.
Original language | English |
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Journal | Journal of Optics A: Pure and Applied Optics (Print) |
Volume | 11 |
Issue number | 11 |
Pages (from-to) | 7 |
ISSN | 2040-8978 |
DOIs | |
Publication status | Published - 2009 |
Keywords
- bulk metamaterial
- negative-index material
- effective homogeneity
- 3D metamaterial