Extremely Thin Metamaterial as Slab Waveguide at Terahertz Frequencies

Author

Minowa, Yosuke ; Nagai, Masaya ; Tao, Hu ; Fan, Kebin ; Strikwerda, A.C. ; Zhang, Xin ; Averitt, Richard D. ; Tanaka, Koichiro

Author_Institution

Dept. of Phys., Kyoto Univ., Kyoto, Japan

Volume

1

Issue

2

fYear

2011

Firstpage

441

Lastpage

449

Abstract

We investigate the waveguiding properties of a planar metamaterial slab using terahertz time-domain attenuated total reflection spectroscopy. The enhancement of evanescent waves is observed for transverse electric and transverse magnetic excitation and is caused by resonant excitation of waveguide modes in the slab. Our calculation describes the experimental results and justifies the extremely small effective thickness. We also studied the dispersion relations of the waveguide modes of the slab by theoretical calculation.

Keywords

metamaterials; planar waveguides; slabs; terahertz spectroscopy; attenuated total reflection spectroscopy; dispersion relations; evanescent waves; extremely thin metamaterial; planar metamaterial slab; resonant excitation; slab waveguide; terahertz frequencies; terahertz time-domain spectroscopy; transverse electric excitation; transverse magnetic excitation; waveguiding properties; Dispersion; Metamaterials; Optical waveguides; Spectroscopy; Surface waves; Time domain analysis; Metamaterials; optical waveguides; spectroscopy; time-domain analysis;

fLanguage

English

Journal_Title

Terahertz Science and Technology, IEEE Transactions on

Publisher

ieee

ISSN

2156-342X

Type

jour

DOI

10.1109/TTHZ.2011.2167832

Filename

6045317