DCP-FDTD Analysis of an InSb-Coated Dielectric Cylinder Array in the THz Regime
- Resource Type
- Conference
- Authors
- Shibayama, Jun; Iwamoto, Tetsuya; Kuroda, Takuma; Yamauchi, Junji; Nakano, Hisamatsu
- Source
- 2021 International Applied Computational Electromagnetics Society Symposium (ACES) Applied Computational Electromagnetics Society Symposium (ACES), 2021 International. :1-2 Aug, 2021
- Subject
- Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Couplings
Time-frequency analysis
Media
Frequency conversion
Dielectrics
Gratings
Time-domain analysis
FDTD method
dispersive contour-path (DCP)
trapezoidal recursive convolution (TRC)
terahertz wave
- Language
- ISSN
- 1054-4887
The dispersive contour-path (DCP) finite-difference time-domain (FDTD) method is extended to the analysis of arbitrarily shaped dispersive media at terahertz frequencies. For the analysis of a grating consisting of InSb-coated dielectric cylinders, the computation time of the DCP-FDTD method is shown to be reduced to less than 20%, when compared with the traditional technique. The coupling behavior of the field to the substrate is also explained using the phase matching condition.