1 Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX 78712, USA
2 Center for Applied Electromagnetic Systems Research (CAESR), Department of Electrical Engineering, The University of Mississippi, University, MS 38677-1848, USA
3 Author to whom any correspondence should be addressed.
2 Center for Applied Electromagnetic Systems Research (CAESR), Department of Electrical Engineering, The University of Mississippi, University, MS 38677-1848, USA
3 Author to whom any correspondence should be addressed.
Pai-Yen Chen et al 2013 New J. Phys. 15 123029
doi:10.1088/1367-2630/15/12/123029
© IOP Publishing and Deutsche Physikalische Gesellschaft
Received 20 July 2013
Published 17 December 2013
We propose and analyze a graphene-based cloaking metasurface aimed at achieving widely tunable scattering cancelation in the terahertz (THz) spectrum. This 'one-atom-thick' mantle cloak is realized by means of a patterned metasurface comprised of a periodic array of graphene patches, whose surface impedance can be modeled with a simple yet accurate analytical expression. By adjusting the geometry and Fermi energy of graphene nanopatches, the metasurface reactance may be tuned from inductive to capacitive, as a function of the relative kinetic inductance and the geometric patch capacitance, enabling the possibility of effectively cloaking both dielectric and conducting objects at THz frequencies with the same metasurface. We envision applications for low-observable nanostructures and efficient THz sensing, routing and detection.
doi:10.1088/1367-2630/15/12/123029
© IOP Publishing and Deutsche Physikalische Gesellschaft
Received 20 July 2013
Published 17 December 2013
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