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Updated: May 29, 2026
Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
Published on: July 8, 2013
Single-walled carbon nanotubes as base material for THz photoconductive switching: a theoretical study from input
Barmak Heshmat1, Hamid Pahlevaninezhad, Matthew Craig Beard
1Department of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Rd, Victoria, BC V8P 5C2, Canada. barmak@uvic.ca
Abstract:
This paper studies the relation between photoexcitation of a single-walled carbon nanotube (SWNT) based device, and its THz output power in the context of THz photoconductive (PC) switching and THz photomixing. A detailed approach of calculating output THz power for such a device describes the effect of each parameter on the performance of the THz PC switch and highlights the design dependent achievable limits. A numerical assessment, with typical values for each parameter, shows that-subject to thermal stability of the device-SWNT based PC switch can improve the output power by almost two orders of magnitudes compared to conventional materials such as LT-GaAs.
