Transformation optics-inspired metamaterial coatings for controlling the scattering response of wedge/corner-type structures

Transformation optics has recently emerged as a powerful and systematic approach to design application‐oriented metamaterials. In this letter, following up on our previous studies on thin planar retroreflectors, we show how it is possible, in principle, to design “transformation medium” coatings cap...

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Bibliographic Details
Published in:Microwave and optical technology letters 2009-11, Vol.51 (11), p.2709-2712
Main Authors: Gallina, Ilaria, Castaldi, Giuseppe, Galdi, Vincenzo
Format: Article
Language:English
Subjects:
metamaterials
scattering
transformation optics
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Summary:Transformation optics has recently emerged as a powerful and systematic approach to design application‐oriented metamaterials. In this letter, following up on our previous studies on thin planar retroreflectors, we show how it is possible, in principle, to design “transformation medium” coatings capable of controlling the scattering response of metallic corner‐ and wedge‐type structures so as, e.g., to strongly enhance the specularly reflected component. We validate our results via a full‐wave study of the near‐ and far‐field responses, and envisage possible applications. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2709–2712, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24720
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.24720