Cloaking mechanism with antiphase plasmonic satellites
Author(s) -
Mário G. Silveirinha,
Andrea Alù,
Nader Engheta
Publication year - 2008
Publication title -
physical review b
Language(s) - English
Resource type - Journals
eISSN - 1538-4489
pISSN - 1098-0121
DOI - 10.1103/physrevb.78.205109
Subject(s) - cloaking , plasmon , cloak , object (grammar) , physics , observer (physics) , scattering , computer science , satellite , mechanism (biology) , cover (algebra) , optics , metamaterial , quantum mechanics , artificial intelligence , mechanical engineering , astronomy , engineering
In this work we theoretically demonstrate the possibility of cloaking a given object by surrounding it with a finite collection of suitably dimensioned, discrete ``antiphase'' plasmonic scatterers. It is shown that the total scattering from the object may approximately be canceled by the currents induced on a finite number of the plasmonic ``satellite'' scatterers, effectively making the whole system invisible to an external observer. Unlike other approaches, the proposed solution allows one to cloak a given object in a noninvasive manner since the antiphase satellites, being finite in number, do not need to fully cover and be in direct contact with the cloaked object.
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