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Robustness in design and background variations in metamaterial/plasmonic cloaking
Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
Here we discuss our recent numerical results concerning the robustness of the scattering cancellation effect produced by a plasmonic cloak with near-zero permittivity and correspondingly negative polarizability. Being based on an integral effect and on an intrinsically nonresonant phenomenon, we show how variations of the geometrical parameters of the design and changes in the background do not sensibly affect the invisibility properties of the plasmonic/metamaterial cloak. Design examples are presented and discussed in order to highlight this robustness and to provide some insights into this cloaking phenomenon, different from other cloaking techniques recently presented in the literature.
Received 17 December 2007; accepted 17 March 2008; published 17 May 2008.
Citation: (2008), Robustness in design and background variations in metamaterial/plasmonic cloaking, Radio Sci., 43, RS4S01, doi:10.1029/2007RS003815.
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