Optical metamaterial planar with a graded refractive index

摘要

The apparatus comprises a metamaterial and a dielectric layer disposed between the first conductive layer, a second conductive layer, the second conductive layer and the first conductive layer. Each conductive layer has a plurality of holes formed therethrough, such as an array of plurality of holes formed, for example through the metamaterial, itself. Hole is composed of metamaterials to have a graded refractive index at the operating wavelength. May be the wavelength of visible or IR operation wavelength. The device they may consist of an optical element, for example, may have the functionality of a lens or prism with a refractive index gradient. Interface is the interface planar parallel. [Selection Figure] Figure 1A