26 September 2016 Nonlocal scattering tensor due to electromagnetic coupling of surface plasmons to dirac plasmons in graphene
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Abstract
The electromagnetic coupling of surface-plasmon-polariton (SPP) modes, which are localized around the surface of a conductive substrate, to quantum plasmons in a graphene sheet above the surface is investigated and their hybrid quantum-plasmon modes are analyzed. For a double-layer graphene structure, on the other hand, the interplay between the electromagnetic couplings of SPPs to each graphene sheet is explored. An effective- polarizability tensor for a combined system, including coupled double-layer graphene and conductive substrate, has been derived, which consists of the retarded nonlocal Coulomb interactions between electrons in different graphene sheets and the conductive substrate. Additionally, this calculated effective-scattering tensor can be used for constructing an effective-medium theory to study optical properties of inserted nanorods between the graphene sheets and metallic surface.
Conference Presentation
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D. H. Huang, D. H. Huang, O. Roslyak, O. Roslyak, G. Gumbs, G. Gumbs, W. Pan, W. Pan, A. A. Maradudin, A. A. Maradudin, "Nonlocal scattering tensor due to electromagnetic coupling of surface plasmons to dirac plasmons in graphene", Proc. SPIE 9961, Reflection, Scattering, and Diffraction from Surfaces V, 996104 (26 September 2016); doi: 10.1117/12.2235226; https://doi.org/10.1117/12.2235226
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