Shaping 3D Path of Electromagnetic Waves Using Gradient-Refractive-Index Metamaterials.
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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 |
REPOSITORIES: biostudies-literature
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