Interplay between Electromagnetic and Coulomb Coupling

ORAL

Abstract

Both the transverse electromagnetic and longitudinal coulomb couplings of the surface-plasmon mode to the collective excitation of Dirac electrons are investigated. The unique features of coupled quantum-plasmon modes are demonstrated. The predicted dispersion relations of these quantum-plasmon modes should be experimentally observable. For a double-layer graphene structure, the interplay between the interlayer Coulomb forces and the electromagnetic coupling to each layer is calculated. The effective polarizability matrix for coupled double-layer graphene and a semi-infinite conductor is obtained for constructing an effective-medium theory, which includes correlation effects from the Coulomb interaction between electrons in graphene and the conductor as well as the electromagnetic field between them.

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Authors

  • Danhong Huang

    • US Air Force Research Laboratory
    • Air Force Research Laboratory, Space Vehicles Directorate
    • Air Force Research Laboratory, Space Vehicles Directorate, Kirtland Air Force Base

  • Godfrey Gumbs

    • Hunter College of the City University of New York
    • Hunter College, CUNY and Donostia International Physics Center (DIPC)
    • Hunter College, CUNY
    • Hunter College, CUNY and Donostia International Physics Center (DIPC),
    • Hunter College, CUNY, NY
    • Hunter College, City University of New York

  • Alexei Maradudin

    • University of California at Irvine

  • Bo Gao

    • Hunter College of the City University of New York