Title :
THz plasmonic devices based on an array of metallic posts in a parallel-plate waveguide
Author :
Ahmadi-Boroujeni, M. ; Shahabadi, Mahmoud ; Altmann, Kristian
Author_Institution :
Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran
Abstract :
An array of metallic posts sandwiched between two parallel metal plates supports highly-confined surface waves that can be regarded as spoof surface plasmons. This structure which is called the parallel-plate ladder waveguide (PPLWG) can be used for implementing THz guided-wave devices. In this paper, the effect of post shapes on waveguiding characteristics of PPLWG is analyzed and realization of certain devices such as couplers using the proposed structure is investigated.
Keywords :
optical waveguides; parallel plate waveguides; plasmonics; surface plasmons; terahertz wave devices; THz guided-wave devices; THz plasmonic devices; highly-confined surface waves; metallic posts array; parallel metal plates; parallel-plate ladder waveguide; post shapes; spoof surface plasmons; waveguiding characteristics; Arrays; Cutoff frequency; Directional couplers; Educational institutions; Plasmons; Shape; Surface waves;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665628
