Tunable Terahertz Hybrid Metal–Graphene Plasmons

Published/Posted: October 14, 2015

Authors: Jadidi, M. M.; Sushkov, A. B.; Myers-Ward, R. L.; Boyd, A. K; Daniels, K. M.; Gaskill, D. K.; Fuhrer, M. S.; Drew, H. D.; Murphy, T. E.

DOI: 10.1021/acs.nanolett.5b03191

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.

M. M. Jadidi, A. B. Sushkov, R. L. Myers-Ward, A. K. Boyd, K. M. Daniels, D. K. Gaskill, M. S. Fuhrer, H. D. Drew and T. E. Murphy, "Tunable Terahertz Hybrid Metal–Graphene Plasmons", Nano Lett. 15(10) 7099-7104 (2015)
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Manuscript: Jadidi_NanoLett_15_7099_2015.pdf

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Posted in 2D Materials, Graphene, Plasmonics, Terahertz