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
    PublisherMaterials Research Society
    Pages77-82
    Number of pages6
    ISBN (Print)9781605111551
    DOIs
    Publication statusPublished - Jan 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
    Country/TerritoryUnited States
    CitySan Francisco, CA
    Period4/14/094/17/09

    ASJC Scopus subject areas

    • General Materials Science
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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