Graphene hyperlens for terahertz radiation

Andrei Andryieuski, Andrei Lavrinenko, Dmitry N. Chigrin

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    Abstract

    We propose a graphene hyperlens for the terahertz (THz) range. We employ and numerically examine a structured graphene-dielectric multilayered stack that is an analog of a metallic wire medium. As an example of the graphene hyperlens in action, we demonstrate an imaging of two point sources separated by a distance λ0/5. An advantage of such a hyperlens as compared to a metallic one is the tunability of its properties by changing the chemical potential of graphene. We also propose a method to retrieve the hyperbolic dispersion, check the effective medium approximation, and retrieve the effective permittivity tensor.
    Original languageEnglish
    Article number121108
    JournalPhysical Review B Condensed Matter
    Volume86
    Issue number12
    Number of pages5
    ISSN0163-1829
    DOIs
    Publication statusPublished - 2012

    Bibliographical note

    © 2012 American Physical Society

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