Tunable invisibility cloaking by using isolated graphene-coated nanowires and dimers
Zapata-Rodríguez, Carlos J.
Article (Published version)
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We investigate, both theoretically and numerically, a graphene-coated nano-cylinder illuminated by a plane electromagnetic wave in the far-infrared 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 a sufficiently thin cylinder. This polarization-dependent 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 in detail.
Keywords:Nanoparticles / Optical properties and devices / graphene / Nanotubes / coatings
Source:Scientific reports, 2017, 7, 1, 12186-
- England : Nature Publishing Group
- Fabrication and characterization of nano-photonic functional structrues in biomedicine and informatics (RS-45016)
- Spanish Ministry of Economy and Competitiveness (Grant No. TEC2014-53727-C2-1-R).
- Qatar National Research Fund (NPRP 7-665-1-125)