Metamaterials

摘要

One exemplary metamaterial is formed from a plurality of individual unit cells, at least a portion of which have a different permeability than others. The plurality of individual unit cells are arranged to provide a metamaterial having a gradient index along at least one axis. Such metamaterials can be used to form lenses, for example.

主权项

1. An electromagnetic apparatus, comprising:
a varied plurality of resonator elements respectively providing a varied plurality of magnetic polarizations in response to electromagnetic waves, the varied plurality of resonator elements having inter-element spacings substantially less than a free-space wavelength corresponding to a frequency of the electromagnetic waves.