Dynamic Absorption Enhancement and Equivalent Resonant Circuit Modeling of Tunable Graphene-Metal Hybrid Antenna

Tunable Terahertz Hybrid Metal-Graphene Plasmons.

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 tr...

Tunable large resonant absorption in a midinfrared graphene Salisbury screen

Min Seok Jang ( ),1,2,* Victor W. Brar ( ),2,3,* Michelle C. Sherrott,2 Josue J. Lopez,2 Laura Kim ( ),2 Seyoon Kim ( ),2 Mansoo Choi ( ),1,4 and Harry A. Atwater2,3,† 1Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul 151-744, Republic of Korea 2Thomas J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, California 91125, U...

Hybrid Metal-Graphene Plasmons for Tunable Terahertz Optoelectronics

Mohammad M. Jadidi, a Andrei B. Sushkov, Rachael L. Myers-Ward, Anthony K. Boyd, Kevin M. Daniels, D. Kurt Gaskill, b Michael S. Fuhrer, 4, c H. Dennis Drew, d and Thomas E. Murphy e Institute for Research in Electronics & Applied Physics, University of Maryland, College Park, MD 20742, USA Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742, USA ...

Hybrid Metal-Graphene Plasmons for Tunable Terahertz Technology

Among its many outstanding properties, graphene supports terahertz surface plasma waves – sub-wavelength charge density oscillations connected with electromagnetic fields that are tightly localized near the surface[1, 2]. When these waves are confined to finite-sized graphene, plasmon resonances emerge that are characterized by alternating charge accumulation at the opposing edges of the graphe...

Tunable Fano resonance in hybrid graphene-metal gratings