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

    研究成果: 書貢獻/報告類型會議貢獻

    摘要

    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.

    原文英語
    主出版物標題2016 Progress In Electromagnetics Research Symposium, PIERS 2016 - Proceedings
    發行者Institute of Electrical and Electronics Engineers Inc.
    頁面1843-1845
    頁數3
    ISBN(電子)9781509060931
    DOIs
    出版狀態已發佈 - 2016 十一月 3
    事件2016 Progress In Electromagnetics Research Symposium, PIERS 2016 - Shanghai, 中国
    持續時間: 2016 八月 82016 八月 11

    出版系列

    名字2016 Progress In Electromagnetics Research Symposium, PIERS 2016 - Proceedings

    其他

    其他2016 Progress In Electromagnetics Research Symposium, PIERS 2016
    國家中国
    城市Shanghai
    期間2016/08/082016/08/11

    ASJC Scopus subject areas

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

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