Metasurfaces designed by coordinate transformations

Author

Martini, Enrica ; Maci, Stefano

Author_Institution

Dept. of Inf. Eng. & Math. Sci., Univ. of Siena, Siena, Italy

fYear

2013

fDate

20-24 May 2013

Firstpage

888

Lastpage

889

Abstract

Metasurfaces are thin metamaterial layers characterized by unusual reflection properties of plane waves and/or dispersion properties of surface/guided waves. Properly modulated metasurfaces can be used to transform an incoming surface wave field into a different wavefield configuration with desired properties. This work proposes a systematic approach to design a large number of metasurface-based devices based on a metasurface transformation theory. This approach represents an extension of the Transformation Optics method to control the wavefront of surface waves through the use of modulated metasurfaces.

Keywords

adaptive optics; electromagnetic metamaterials; electromagnetic wave propagation; electromagnetic wave reflection; coordinate transformations; dispersion properties; guided waves; metamaterial layers; metasurface transformation theory; metasurface-based devices; plane waves; surface wave field; transformation optics method; unusual reflection properties; wavefield configuration; wavefront control; Antennas; Impedance; Metamaterials; Optical surface waves; Surface impedance; Surface waves; Tensile stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Theory (EMTS), Proceedings of 2013 URSI International Symposium on

Conference_Location

Hiroshima

Print_ISBN

978-1-4673-4939-0

Type

conf

Filename

6565885