THz leaky mode properties exhibited in a plasmonic waveguide with periodic subwavelength corrugated metallic wire structure

Jin Jei Wu, Tzong Jer Yang, Chien Jang Wu, Her Lih Chiueh, In Hang Chung, Jian Qi Shen, Chengchi Yuan, Pin Jung Huang

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

    Abstract

    In this report, the phenomena of low-frequency spoof surface plasmon polaritons (spoof SPPs) in a new metallic cylindrical antenna at terahertz (THz) frequencies are demonstrated. The antenna is designed as a periodic structure whose unit cell includes an open hollow ring (OHR) as compared with the conventional periodic subwavelength corrugated metallic wire (PSCMW) with cylindrical structure. Near- and far-field distributions, dispersion properties, and radiation efficiency are numerically evaluated and then compared for both PSCMW and PSCMW-OHR. It is indicated that when the dispersion line passes through the light line into a radiation zone, the field becomes a leaky mode. We find that the far-field radiation of the leaky mode can generate frequency scanning effects with a scanning angle of 23°, and the radiation efficiency can be increased to 90% as the number of periodic unit cells is large enough.

    Original languageEnglish
    Title of host publication2016 Progress In Electromagnetics Research Symposium, PIERS 2016 - Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages1843-1845
    Number of pages3
    ISBN (Electronic)9781509060931
    DOIs
    Publication statusPublished - 2016 Nov 3
    Event2016 Progress In Electromagnetics Research Symposium, PIERS 2016 - Shanghai, China
    Duration: 2016 Aug 82016 Aug 11

    Publication series

    Name2016 Progress In Electromagnetics Research Symposium, PIERS 2016 - Proceedings

    Other

    Other2016 Progress In Electromagnetics Research Symposium, PIERS 2016
    CountryChina
    CityShanghai
    Period2016/08/082016/08/11

    ASJC Scopus subject areas

    • Instrumentation
    • Radiation
    • Electrical and Electronic Engineering
    • Atomic and Molecular Physics, and Optics

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