Title :
Terahertz superfocusing using a metal tapered parallel waveguide and its application to terahertz time-domain spectroscopy of hollow plastic tube
Author :
Yamamoto, Kohji ; Iwasaki, Hironori ; Tsuji, Shinsei ; Yasuda, Ryouhei ; Fukui, Kazutoshi ; Kurihara, Kazuyoshi ; Kuwashima, Fumiyoshi ; Tani, Masahiko
Author_Institution :
Res. Center for Dev. of Far-Infrared Region, Univ. of Fukui, Fukui, Japan
Abstract :
We have investigated the THz superfocusing effect using a metal tapered parallel waveguide and THz dielectric response of plastic tubes sandwiched between parallel plates of the waveguide. We observed that about 20% amplitude of terahertz wave can be transmitted through a 20-μm slit of the waveguide.
Keywords :
parallel plate waveguides; submillimetre wave tubes; terahertz spectroscopy; THz dielectric response; hollow plastic tube; metal tapered parallel waveguide; parallel plate waveguide; size 20 mum; terahertz superfocusing effect; terahertz time-domain spectroscopy; Attenuation; Educational institutions; Electron tubes; Liquids; Metals; Plastics; Spectroscopy;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380245
