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.

© 2016 IEEE

Flexible single-mode hollow-core terahertz fiber with metamaterial cladding

Haisu Li, Shaghik Atakaramians, Richard Lwin, Xiaoli Tang, Zhuzheng Yu, Alexander Argyros, and Boris T. Kuhlmey
Optica 3(9) 941-947 (2016)

Coupled equations of electromagnetic waves in nonlinear metamaterial waveguides

Mina Azari, Mohsen Hatami, Vahid Meygoli, and Elham Yousefi
Appl. Opt. 55(31) 8651-8656 (2016)

Electromagnetic wave propagation through doubly dispersive subwavelength metamaterial hole

Ki Young Kim, Jeong-Hae Lee, Young Ki Cho, and Heung-Sik Tae
Opt. Express 13(10) 3653-3665 (2005)

Electromagnetic wave propagations in conjugate metamaterials

Yadong Xu, Yangyang Fu, and Huanyang Chen
Opt. Express 25(5) 4952-4966 (2017)

Hollow-core waveguides with uniaxial metamaterial cladding: modal equations and guidance conditions

Shaghik Atakaramians, Alexander Argyros, Simon C. Fleming, and Boris T. Kuhlmey
J. Opt. Soc. Am. B 29(9) 2462-2477 (2012)