https://doi.org/10.1051/epjam/2015016
Research Article
Synthesis of electromagnetic metasurfaces: principles and illustrations
1
Dept. of Electrical Engineering, Polytechnique Montréal, Montréal, QC
H2T 1J3, Canada
2
Electrical and Computer Engineering Dept. King Abdulaziz University, P.O. Box 80204, Jeddah
21589, Saudi Arabia
* e-mail: karim.achouri@polymtl.ca
Received:
1
September
2015
Accepted:
19
November
2015
Published online: 26 January 2016
The paper presents partial overview of the mathematical synthesis and the physical realization of metasurfaces, and related illustrative examples. The synthesis consists in determining the exact tensorial surface susceptibility functions of the metasurface, based on generalized sheet transition conditions, while the realization deals with both metallic and dielectric scattering particle structures. The examples demonstrate the capabilities of the synthesis and realization techniques, thereby showing the plethora of possible metasurface field transmission and subsequent applications. The first example is the design of two diffraction engineering birefringent metasurfaces performing polarization beam splitting and orbital angular momentum multiplexing, respectively. Next, we discuss the concept of the electromagnetic remotely controlled metasurface spatial processor, which is an electromagnetic linear switch based on destructive interferences. Then, we introduce a non-reciprocal non-gyrotropic metasurface using a pick-up circuit radiator (PCR) architecture. Finally, the implementation of all-dielectric metasurfaces for frequency dispersion engineering is discussed.
Key words: Metasurface synthesis / Birefringence / Refraction / Orbital angular momentum / Frequency dispersion engineering / Metamaterial switch / Non-reciprocal metadevice
© K. Achouri et al., Published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
