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arXiv · 1209.3951

Graphene hyperlens for terahertz radiation

Andrei Andryieuski·Andrei V. 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 analogue of a metallic wire medium. As an example of the graphene hyperlens in action we demonstrate an imaging of two point sources separated with distance $\lambda_{0}/5$. 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.

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Andrei Andryieuski, Andrei V. Lavrinenko, Dmitry N. Chigrin. 2012-09-18. Graphene hyperlens for terahertz radiation. https://doi.org/10.1103/physrevb.86.121108

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