Tunable Terahertz Hybrid Metal鈥揋raphene Plasmons

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• 作者：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
• 刊名：Nano Letters
• 出版年：2015
• 出版时间：October 14, 2015
• 年：2015
• 卷：15
• 期：10
• 页码：7099-7104
• 全文大小：385K
• ISSN：1530-6992

文摘

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.