Terahertz wave enhanced transmission through a single subwavelength aperture with periodic surface structures

Kunihiko Ishihara, Gen Ichi Hatakoshi, Tomofumi Ikari, Hiroaki Minamide, Hiromasa Ito, Keishi Ohashi

研究成果: Article

21 引用 (Scopus)

抜粋

We demonstrate resonantly enhanced transmission of terahertz (THz) wave radiation (λ ∼ 200μm) through a bull's eye structure (a single subwavelength aperture surrounded by concentric periodic grooves in a metal plate). The phenomenon is caused by the resonant excitation of surface waves, which are known as surface plasmon polaritons in the optical region, generated by the concentric periodic grooves. Strongly enhanced transmission of THz-wave radiation is observed through the single subwavelength circular aperture (diameter d = 100 μm). We also show that introducing the Bragg reflector to the bull's eye structure results in the further increase of the enhanced transmission.

元の言語English
ページ(範囲)L1005-L1007
ジャーナルJapanese Journal of Applied Physics, Part 2: Letters
44
発行部数28-32
DOI
出版物ステータスPublished - 2005 12 1
外部発表Yes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

フィンガープリント Terahertz wave enhanced transmission through a single subwavelength aperture with periodic surface structures' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用