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Quantification of the Transmission Properties of Metasurfaces Illuminated by Finite-size Beams by Boutria, Mohamed; Ndao, Abdoulaye; Baida, Fadi I. is a scholarly article available to read on EtoBox.

What is Quantification of the Transmission Properties of Metasurfaces Illuminated by Finite-size Beams about?

The aim of this letter is to {present analytical method to} quantitatively address the influence of a focusing illumination on the transmission /reflection properties of a {metasurface illuminated by a finite-size beam}. In fact, most theoretical and numerical studies are performed by considering an infinite periodic structure illuminated by a plane wave. In practice, one deals with a finite-size illumination and structure. Combination of the angular spectrum expansion with a monomodal modal method is performed to determine the beam size needed to acquire efficient properties of a Metasurface that behaves as Anisotropic Plate MAP Interesting results show that the beam-size can be as small as 5X5 periods to recover the results of a plane wave. Other results also show that the beam-size could be used as an extrinsic parameter to enhance the MAP performance and to finely adjust its expected properties (birefringence and/or transmission coefficient).

Author

Boutria, Mohamed; Ndao, Abdoulaye; Baida, Fadi I.

Published

2017

Language

EN