Subwavelength terahertz waveguide using negative permeability metamaterial

Atsushi Ishikawa, Shuang Zhang, Dentcho A. Genov, Guy Bartal, Xiang Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We propose a novel subwavelength terahertz (THz) waveguide using the magnetic plasmon polariton (MPP) mode guided by a narrow gap in a negative permeability metamaterial. Deep subwavelength wave-guiding (< λ/10) with a modest propagation loss (2.5 dB/λ) and group velocities down to c/21.8 is demonstrated in a straight waveguide, a 90-degree bend, and a splitter. The distinctive dispersions of the guided mode with positive and negative group velocities are explained analytically by considering the dispersive effective optical constants of the metamaterial. The proposed waveguiding system inherently has no cutoff for any core width and height, paving the way toward the deep subwavelength transport of THz waves for integrated THz device applications.

Original languageEnglish
Title of host publicationMaterials for Nanophotonics - Plasmonics, Metamaterials and Light Localization
Pages77-82
Number of pages6
Publication statusPublished - Dec 1 2009
Event2009 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 14 2009Apr 17 2009

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1182
ISSN (Print)0272-9172

Other

Other2009 MRS Spring Meeting
CountryUnited States
CitySan Francisco, CA
Period4/14/094/17/09

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ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Ishikawa, A., Zhang, S., Genov, D. A., Bartal, G., & Zhang, X. (2009). Subwavelength terahertz waveguide using negative permeability metamaterial. In Materials for Nanophotonics - Plasmonics, Metamaterials and Light Localization (pp. 77-82). (Materials Research Society Symposium Proceedings; Vol. 1182).