Journal article ยท Preprint article
Achieving anisotropy in metamaterials made of dielectric cylindrical rods
We show that anisotropic negative effective dispersion relation can be achieved in pure dielectric rod-type metamaterials by turning from the symmetry of a square lattice to that of a rectangular one. Theoretical predictions and conclusions are verified by both numerical calculations and computer based simulations.
The proposed anisotropic metamaterial, is used to construct a refocusing slab lens and a subdiffraction hyperlens. The all-dielectric origin makes it more straightforward to address loss and scaling, thus facilitating future applications in both the terahertz and optical range.
Language: | English |
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Publisher: | American Institute of Physics |
Year: | 2010 |
ISSN: | 10773118 and 00036951 |
Types: | Journal article and Preprint article |
DOI: | 10.1063/1.3453446 |
ORCIDs: | Mortensen, Asger |
dielectric materials dispersion relations metamaterials numerical analysis optical constants slabs