Journal article · Preprint article
Graphene hyperlens for terahertz radiation
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.
Language: | English |
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Year: | 2012 |
Pages: | 5 |
ISSN: | 1550235x , 10980121 , 10953795 and 01631829 |
Types: | Journal article and Preprint article |
DOI: | 10.1103/PhysRevB.86.121108 |
ORCIDs: | Andryieuski, Andrei and Lavrinenko, Andrei |