Tunable invisibility cloaking by using graphene-coated nanowires

We investigate, both theoretically and numerically, a graphene-coated nano-cylinder illuminated by a plane electromagnetic wave in THz range of frequencies. We have derived an analytical formula that enables fast evaluation of the spectral window with a substantial reduction in scattering efficiency...

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Bibliographic Details
Published in:arXiv.org 2017-01
Main Authors: Naserpour, Mahin, Zapata-Rodriguez, Carlos J, Vukovic, Slobodan M, Belic, Milivoj R
Format: Article
Language:English
Subjects:
Chemical potential
Cylinders
Dimers
Electromagnetic radiation
Graphene
Nanowires
Organic chemistry
Stealth technology
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Summary:We investigate, both theoretically and numerically, a graphene-coated nano-cylinder illuminated by a plane electromagnetic wave in THz range of frequencies. We have derived an analytical formula that enables fast evaluation of the spectral window with a substantial reduction in scattering efficiency for sufficiently thin cylinder. This effect leads to tunable resonant invisibility that can be achieved via modification of graphene chemical potential monitored by the gate voltage. A multi-frequency cloaking mechanism based on dimer coated nanowires is also discussed.
ISSN:2331-8422