Electromagnetic Wave Propagation Through Air-Core Waveguide With Metamaterial Cladding

Xiaoli Tang, Boris T. Kuhlmey, Alessio Stefani, Alessandro Tuniz, Simon C. Fleming, Alexander Argyros

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Abstract

Metamaterial-based waveguides offer unusual properties compared to conventional metallic and dielectric waveguides. We experimentally investigate a novel waveguide with an air-core and a cladding formed of slotted cylinder resonators, which can have an electric and/or a magnetic response at terahertz (THz) frequencies, depending on their orientation and the polarization of the light, and through these confine radiation to the hollow core. Various interesting phenomena are observed in the experiments, including confinement of radiation through the electric response as well as the magnetic response, spatial dispersion, total internal reflection with refractive indices below 1, and slit resonances. Such waveguides promise future novel THz applications, such as refractive index sensors or dispersion management.
Original languageEnglish
JournalJournal of Lightwave Technology
Volume34
Issue number22
Pages (from-to)5317-5324
ISSN0733-8724
DOIs
Publication statusPublished - 2016
Externally publishedYes

Bibliographical note

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Keywords

  • Electromagnetic metamaterials
  • Terahertz metamaterials
  • Terahertz radiation

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