Journal
NANO LETTERS
Volume 15, Issue 10, Pages 7099-7104Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b03191
Keywords
graphene; terahertz; far-infrared; plasmons; antennas; metamaterials
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Funding
- U.S. ONR [N000141310865]
- U.S. NSF [ECCS 1309750]
- Office of Naval Research
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1309750] Funding Source: National Science Foundation
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We report here a new type of plasmon resonance that occurs when graphene is connected to a metal. These new plasmon modes offer the potential to incorporate a tunable plasmonic channel into a device with electrical contacts, a critical step toward practical graphene terahertz optoelectronics. Through theory and experiments, we demonstrate, for example, anomalously high resonant absorption or transmission when subwavelength graphene-filled apertures are introduced into an otherwise conductive layer. These tunable plasmon resonances are essential yet missing ingredients needed for terahertz filters, oscillators, detectors, and modulators.
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