Controlling THz and far-IR waves with chiral and bianisotropic metamaterials

Chiral and bianisotropic metamaterials, where coupling of magnetic and electric phenomena plays an important role, offer advanced possibilities for the control and manipulation of electromagnetic waves. Such a control is particularly useful in the THz and far-IR region where natural materials do not...

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Bibliographic Details
Published inEPJ applied metamaterials Vol. 2; p. 15
Main Authors Kenanakis, George, Economou, Eleftherios N., Soukoulis, Costas M., Kafesaki, Maria
Format Journal Article
LanguageEnglish
Published Les Ulis EDP Sciences 2015
Subjects
Asymmetric transmission
Chiral media
Design
Direct laser writing
Electromagnetic radiation
Ellipticity
Filtration
Metamaterials
Optical activity
Permeability
Photoconductive silicon
Polarization
Propagation
Rotation
Split-cube resonators
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Summary:Chiral and bianisotropic metamaterials, where coupling of magnetic and electric phenomena plays an important role, offer advanced possibilities for the control and manipulation of electromagnetic waves. Such a control is particularly useful in the THz and far-IR region where natural materials do not show strong response and thus they are not offered as components for a direct realization of electromagnetic wave manipulation. Among the most useful and important capabilities of chiral and bianisotropic metamaterials is the advanced control of the wave polarization that they offer, including giant polarization rotation, conversion, filtering, absorption, etc. In this paper we review our recent work demonstrating some of those capabilities, in a variety of structures, both planar and 3D-bulk ones. The structures presented show, among others, large optical activity, tunable/switchable wave ellipticity, and polarization-dependent asymmetric transmission.
ISSN:2272-2394
2272-2394
DOI:10.1051/epjam/2015019