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Tunable Compact Thz Devices Based On Graphene And Other 2d Material Metasurfaces, Tianjing Guo
Tunable Compact Thz Devices Based On Graphene And Other 2d Material Metasurfaces, Tianjing Guo
Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research
Since the isolation of graphene in 2004, a large amount of research has been directed at 2D materials and their applications due to their unique characteristics. Compared with the noble metal plasmons in the visible and near-infrared frequencies, graphene can support surface plasmons in the lower frequencies of terahertz (THz) and midinfrared. Especially, the surface conductivity of graphene can be tuned by either chemical doping or electrostatic gating. As a result, the idea of designing graphene metasurfaces is attractive because of its ultra-broadband response and tunability.
It has been demonstrated theoretically and experimentally that the third-order nonlinearity of graphene at …