29 April 2016 Graphene-based van der Waals heterostructures for emission and detection of terahertz radiation
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Abstract
This paper reviews recent advances in the research of graphene-based van der Waals heterostructures for emission and detection of terahertz radiation. A gated double-graphene-layer (DGL) nanocapacitor is the core shell under consideration, in which a thin tunnel barrier layer is sandwiched by outer graphene layers at both sides. The DGL can support symmetric optical and anti-symmetric acoustic coupled plasmon modes in the GLs. The latter mode can modulate the band-offset between the GL, giving rise to modulation of the inter-GL-layer resonant tunneling. This can dramatically enhance the THz gain or responsivity via plasmon-assisted inter-GL resonant tunneling.
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Taiichi Otsuji, Alexander Dubinov, Vladimir Ya Aleshkin, Dmitry Svintsov, Maxim Ryzhii, Stephane Boubanga Tombet, Deepika Yadav, Akira Satou, Vladimir Mitin, Michael S. Shur, Victor Ryzhii, "Graphene-based van der Waals heterostructures for emission and detection of terahertz radiation", Proc. SPIE 9856, Terahertz Physics, Devices, and Systems X: Advanced Applications in Industry and Defense, 985603 (29 April 2016); doi: 10.1117/12.2225257; https://doi.org/10.1117/12.2225257
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