Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 7099-7104 |
| Number of pages | 6 |
| Journal | Nano Letters |
| Volume | 15 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2015 |
Keywords
- antennas
- far-infrared
- graphene
- metamaterials
- plasmons
- terahertz
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