Journal
ACS PHOTONICS
Volume 1, Issue 8, Pages 647-654Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ph500046r
Keywords
graphene; plasmonics; terahertz; graphene devices; graphene plasmonics; graphene optoelectronics
Categories
Funding
- NSF CAREER [ECCS-0953311]
- AFOSR [FA9550-13-1-0204]
- ARO [W911NF-11-1-0447]
- Welch Foundation [F-1802]
- Norman Hackerman Advanced Research Program
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [0953311] Funding Source: National Science Foundation
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We propose here a new platform to realize a plethora of graphene-based plasmonic nanodevices for frequency-agile terahertz (THz) frontend circuits. We demon, strate that a class of hybrid electronic-plasmonic nanodevices combining active graphene field-effect transistors (GFET) and graphene plasmonic waveguides (GPWG) supporting tightly confined propagation of THz signals with tailored phase velocity, and characteristic impedance controlled by the gate and drain voltages of GFET. We propose a variety of reconfigurable graphene-based nanodevices based on this general architecture, including reconfigurable and electronically programmable phase-shifters, filters, transformers, modulators, and terminators. We envision the integration of these THz circuit elements into, a fully reconfigurable THz system as a fundamental step toward new design architectures and protocols for THz communication, sensing, actuation and biomedical applications.
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