Title :
Influence of metal surface roughness on the phase velocity of terahertz waves propagating in parallel plate waveguides
Author :
Takeshima, D. ; Sakon, T. ; Tsuzuki, S. ; Matsui, F. ; Kusuda, Y. ; Furuya, Tadasuke ; Nishizawa, Shinichi ; Kurihara, Keiichirou ; Kuwashima, F. ; Estacio, Elmer ; Yamamoto, Koji ; Tani, Motoaki
Author_Institution :
Univ. of Fukui, Fukui, Japan
Abstract :
This work presents evidence of phase velocity dependence on metal surface roughness for terahertz (THz) waves propagating in a parallel plate metal waveguide having a sub-wavelength gap. This suggests a possibility to control the phase velocity and the propagation direction of guided THz waves by varying the surface roughness of the parallel plates.
Keywords :
parallel plate waveguides; surface roughness; terahertz waves; guided THz waves; metal surface roughness; parallel plate metal waveguide; phase velocity; propagation direction; subwavelength gap; terahertz waves; Educational institutions; Metals; Plasmons; Rough surfaces; Surface roughness; Surface waves; Waveguide discontinuities;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665758
