Tunable terahertz hybrid metal-graphene plasmons

Mohammad M Jadidi, Andrei B Sushkov, Rachael L Myers-Ward, Anthony K Boyd, Kevin M Daniels, D Kurt Gaskill, Michael S Fuhrer, H Dennis Drew, Thomas E Murphy

Research output: Contribution to journalArticleResearchpeer-review

106 Citations (Scopus)

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 languageEnglish
Pages (from-to)7099-7104
Number of pages6
JournalNano Letters
Volume15
Issue number10
DOIs
Publication statusPublished - 2015

Keywords

  • antennas
  • far-infrared
  • graphene
  • metamaterials
  • plasmons
  • terahertz

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