Shaping 3D Path of Electromagnetic Waves Using Gradient-Refractive-Index Metamaterials.

ABSTRACT: An all-dielectric semispherical lens with functions in shaping 3D wave-propagation paths is proposed and experimentally verified. When radiation sources are placed in the central region, the lens behaves as a magnifying device to resolve the sources in subwavelength scale; while when the electromagnetic waves impinge on the semispherical lens from outside, they will be guided spirally inward.

SUBMITTER: Jiang WX 

PROVIDER: S-EPMC5115487 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature