5 papers
Electromagnetic Theory of Metasurface Perfect Magnetic Conductor (PMC)
Oscar Céspedes Vicente, Karim Achouri, Christophe Caloz
Artificial magnetic conductors (AMCs) mimic the idealized boundary condition of a perfect magnetic conductor (PMC), which reflects electromagnetic waves with a preserved electric f…
Multipolar Angular Scattering of Substrated Metasurfaces
Hossein Allahverdizadeh, Karim Achouri
Properly modeling and predicting the scattering response of a metasurface is a particularly challenging task. This has been shown to be especially difficult if the metasurface supp…
A General Expression for Homogeneous Metasurface Scattering
Francisco S. Cuesta, Karim Achouri
The general approach in metasurface design is to find the unit-cell properties required to achieve a given functionality. This is usually done by modeling the metasurface as a comb…
Angle-Invariant Scattering in Metasurfaces
Mustafa Yücel, Francisco S. Cuesta, Karim Achouri
Metasurfaces are efficient and versatile electromagnetic structures that have already enabled the implementation of a wide range of microwave and photonic wave shaping applications…
Step Function in Momentum Space by a Metagrating
Mahmoud A. A. Abouelatta, Sergejs Boroviks, Olivier J. F. Martin +1
Metasurface research has shown significant potential for controlling the polarization, amplitude, phase and propagation direction of light. Nevertheless, control over the angular r…