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  • CLEO/Europe and IQEC 2007 Conference Digest
  • (Optica Publishing Group, 2007),
  • paper JSII_4

Beam reshaping through excitation of magnetoinductive waves in metamaterials

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Abstract

We study, both theoretically and experimentally, the excitation of magnetoinductive waves in uniaxial composite metamaterial structures composed of split-ring resonators (SRRs). We excite a slab of a magnetic metamaterial by a monopole antenna and analyse the beam structure behind the slab. Though the scale of the composite constituents are much smaller then the wavelength of radiation, we observe that the approximation based on an effective medium fails to describe all observed effects, including the multiple beam splitting. We develop a numerical algorithm for describing the lattices of SRRs in terms of interacting dipoles, and confirm qualitatively the effects observed in experiment.

© 2007 IEEE

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