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 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