Electromagnetic wave scattering on imperfect cloaking devices | Zendy

Goran Isić | Zendy; Angela Beltaos | Zendy; Radoš Gajić | Zendy; Kurt Hingerl | Zendy

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Electromagnetic wave scattering on imperfect cloaking devices

Author(s) -

Goran Isić,

Angela Beltaos,

Radoš Gajić,

Kurt Hingerl

Publication year - 2008

Publication title -

science of sintering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.309

H-Index - 25

eISSN - 1820-7413

pISSN - 0350-820X

DOI - 10.2298/sos0803245i

Subject(s) - cloaking , cloak , imperfect , scattering , bounding overwatch , formalism (music) , constructive , physics , computer science , optics , metamaterial , artificial intelligence , visual arts , operating system , art , musical , linguistics , philosophy , process (computing)

Cloaking devices based on the coordinate transform approach enable, in principle, a perfect concealment of a region in space provided that the material composing the cloaking shell meets certain criteria. To achieve ideal cloaking it is necessary that the shell material parameters have singular values on the surface bounding the cloaked region which is unphysical. In this paper we assume finite values of cloak parameters and apply the scattering theory formalism to give an estimate of the overall performance of an 'imperfect' cloak. We perform full-wave numerical calculations and use our theoretical results to discuss them

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