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Use of Terahertz Photoconductive Sources to Characterize Tunable Graphene RF Plasmonic Antennas

Author(s)
Cabellos-Aparicio, Albert; Llatser, Ignacio; Alarcon, Eduard; Hsu, Allen; Palacios, Tomas
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Abstract
Graphene, owing to its ability to support plasmon polariton waves in the terahertz frequency range, enables the miniaturization and electrical tunability of antennas to allow wireless communications among nanosystems. One of the main challenges in the characterization and demonstration of graphene antennas is finding suitable terahertz sources to feed the antenna. This paper characterizes the performance of a graphene RF plasmonic antenna fed with a photoconductive source. The terahertz source is modeled and, by means of a full-wave EM solver, the radiated power as well as the tunable resonant frequency of the device is estimated with respect to material, laser illumination, and antenna geometry parameters. The results show that with this setup the antenna radiates terahertz pulses with an average power up to 1 μW and shows promising electrical frequency tunability.
Date issued
2015-03
URI
http://hdl.handle.net/1721.1/100982
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Journal
IEEE Transactions on Nanotechnology
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Cabellos-Aparicio, Albert, Ignacio Llatser, Eduard Alarcon, Allen Hsu, and Tomas Palacios. “Use of Terahertz Photoconductive Sources to Characterize Tunable Graphene RF Plasmonic Antennas.” IEEE Trans. Nanotechnology 14, no. 2 (March 2015): 390–396.
Version: Original manuscript
ISSN
1536-125X
1941-0085

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