Near Zero Index Perfect Metasurface Absorber using Inverted Conformal Mapping.

ABSTRACT: The geometry of the characteristic element forming the artificial structure of an electromagnetic metamaterial defines the way the metamaterial will interact with electromagnetic waves, and accordingly, how it will transmit, reflect, and absorb electromagnetic energy. Metamaterials have been discovered that can manipulate electromagnetic waves to create perfect absorption of incident electromagnetic energy using relatively simple elemental geometries. But the phenomenon is confined to very narrow frequency bandwidths owing to the mono-resonance characteristics of simple cellular structures. Complex cellular geometries based on the combination of many different fundamental building blocks may be able to constructively couple many more resonances and broaden the perfect absorption bandwidth.

SUBMITTER: Swett DW 

PROVIDER: S-EPMC7297995 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature