Title :
Finite-difference time-domain analysis of terahertz devices
Author :
Shibayama, Jun ; Yamauchi, Junji ; Nakano, Hisamatsu
Author_Institution :
Fac. of Sci. & Eng., Hosei Univ., Koganei, Japan
Abstract :
This article presents several topics regarding the FDTD analysis of terahertz (THz) devices. First, the treatment of metal is discussed with attention to the use of the perfect electric conductor approximation and the Drude model that takes metal dispersion into account. Next, two ways to support THz waves are explained on the basis of the propagation characteristics of surface plasmon polaritons. Furthermore, practical THz devices consisting of frequency selective surfaces are analyzed using the periodic FDTD method. Finally, the implicit FDTD method is applied to the efficient analysis of THz devices.
Keywords :
conductors (electric); finite difference time-domain analysis; frequency selective surfaces; polaritons; surface plasmons; terahertz wave devices; Drude model; electric conductor approximation; finite-difference time-domain analysis; frequency selective surfaces; metal dispersion; metal treatment; periodic FDTD method; propagation characteristics; surface plasmon polaritons; terahertz devices; Finite difference methods; Gratings; Metals; Optical resonators; Optical surface waves; Plasmons; Time-domain analysis;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2014 International Conference on
Conference_Location :
Palm Beach
Print_ISBN :
978-1-4799-7325-5
DOI :
10.1109/ICEAA.2014.6903879
