Thursday, September 24, 2015

Abstract-Tunable Terahertz Hybrid Metal-Graphene Plasmons

Mohammad Mehdi Jadidi, Andrei Sushkov, Rachael L. Myers-Ward, Anthony Boyd, Kevin Daniels, D Kurt Gaskill, Michael S Fuhrer, H. Dennis Drew and Thomas Edward Murphy

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 towards 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.

No comments: