642 citations · 1.9k across the 40 of their papers we have counts for
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Design, Concepts and Applications of Electromagnetic Metasurfaces
Karim Achouri, Christophe Caloz
The paper overviews our recent work on the synthesis of metasurfaces and related concepts and applications. The synthesis is based on generalized sheet transition conditions (GSTCs…
Computational Analysis of Metasurfaces
Yousef Vahabzadeh, Nima Chamanara, Karim Achouri +1
Metasurfaces represent one of the most vibrant fields of modern science and technology. A metasurface is a complex electromagnetic structure, that is typically deeply subwavelength…
Metasurface Solar Sail for flexible Radiation Pressure Control
Karim Achouri, Christophe Caloz
We propose to use metasurfaces as a mean of controlling radiation pressure for increasing the range of motions of spacecraft solar sails. Specifically, we present a theoretical stu…
Refracting Metasurfaces without Spurious Diffraction
Guillaume Lavigne, Karim Achouri, Viktar Asadchy +2
Refraction represents one of the most fundamental operations that may be performed by a metasurface. However, simple phasegradient metasurface designs suffer from restricted angula…
Perfectly Refractive Metasurface using Bianisotropy
Guillaume Lavigne, Karim Achouri, Christophe Caloz +2
A passive and reciprocal perfectly refractive metasurface is designed using a general susceptiblity synthesis method. The metasurface uses weak spatial dispersion in the form of bi…
Efficient Analysis of Metasurfaces in Terms of Spectral-Domain GSTC Integral Equations
Nima Chamanara, Karim Achouri, Christophe Caloz
We present a spectral-domain (SD) technique for the efficient analysis of metasurfaces. The metasurface is modeled by generalized sheet transition conditions (GSTCs) as a zero-thic…
Mathematical Synthesis and Analysis of Nonlinear Metasurfaces
Karim Achouri, Yousef Vahabzadeh, Christophe Caloz
We propose a discussion on the synthesis and scattering analysis of nonlinear metasurfaces. For simplicity, we investigate the case of a second-order nonlinear isotropic metasurfac…
Controllable Angular Scattering with a Bianisotropic Metasurface
Karim Achouri, Christophe Caloz
We propose the concept of a bianisotropic metasurface with controllable angular scattering. We illustrate this concept with the synthesis and the analysis of a metasurface exhibiti…