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

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© 2012 American Physical Society

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