Total Transmission and Total Reflection by Zero Index Metamaterials with Defects
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- 3 December 2010
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 105 (23), 233908
- https://doi.org/10.1103/physrevlett.105.233908
Abstract
We theoretically investigate microwave transmission through a zero-index metamaterial loaded with dielectric defects. The metamaterial is impedance matched to free space, with the permittivity and permeability tending towards zero over a given frequency range. By simply varying the radii and permittivities of the defects, total transmission or reflection of the impinging electromagnetic wave can be achieved. The proposed defect structure can offer advances in shielding or cloaking technologies without restricting the object’s viewpoint. Active control of the observed exotic transmission and reflection signatures can occur by incorporating tunable refractive index materials such as liquid crystals and . DOI: http://dx.doi.org/10.1103/PhysRevLett.105.233908 © 2010 The American Physical Society
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