Tunable subwavelength terahertz plasmonic stub waveguide filters

Tunable subwavelength terahertz plasmonic stub waveguide filters

Tunable subwavelength terahertz plasmonic stub waveguide filters based on indium antimonide are proposed and numerically investigated. The transmission line theory and the Finite Different Time Domain simulation results reveal that the single-stub waveguide structure can realize a stop-band filterin...

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Bibliographic Details
Main Authors: Tao, Jin, Wang, Qi Jie, Hu, Bin, He, Xiao Yong, Zhang, Ying
Other Authors: School of Electrical and Electronic Engineering
Format: Conference or Workshop Item
Language:English
Published: 2013
Subjects:
DRNTU::Engineering::Electrical and electronic engineering::Nanoelectronics
Online Access:https://hdl.handle.net/10356/106967
http://hdl.handle.net/10220/18035
http://dx.doi.org/10.1109/INEC.2013.6466076
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Institution: Nanyang Technological University
Language: English
Description
Summary:Tunable subwavelength terahertz plasmonic stub waveguide filters based on indium antimonide are proposed and numerically investigated. The transmission line theory and the Finite Different Time Domain simulation results reveal that the single-stub waveguide structure can realize a stop-band filtering function and the central wavelength of the notch is linearly dependent on the stub length while nonlinearly dependent on the stub width. The central wavelength of the notch can be actively controlled by tuning the temperature. The proposed filters may have applications in THz highly-integrated plasmonic circuits.

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