386 citations · 502 across the 7 of their papers we have counts for
7 papers
Microwave Vortex Beam Launcher Design
N. Pelin M. H. Salem, Edip Niver, Mohamed A. Salem
A novel design for a vectorial vortex beam launcher in the microwave regime is devised. The beam is formed by launching a single guided transverse electric (TE) mode of a metallic…
Synthesis of Electromagnetic Metasurfaces: Principles and Illustrations
Karim Achouri, Bakthiar Ali Khan, Shulabh Gupta +3
The paper presents partial overview of the mathematical synthesis and the physical realization of metasurfaces, and related illustrative examples. The synthesis consists in determi…
Metasurface Spatial Processor for Electromagnetic Remote Control
Karim Achouri, Guillaume Lavigne, Mohamed Ahmed Salem +1
We introduce the concept of metasurface spatial processor, whose transmission is remotely and coherently controlled by the superposition of an incident wave and a control wave thro…
Space-Time Cross-Mapping and Application to Wave Scattering
Mohamed A. Salem, Christophe Caloz
Causality creates an asymmetry between space and time, even though the wave equation treats them on equal footing. In this work, we leverage this asymmetry to construct a cross-map…
General Metasurface Synthesis Based on Susceptibility Tensors
Karim Achouri, Mohamed Ahmed Salem, Christophe Caloz
A general method, based on susceptibility tensors, is proposed for the synthesis of metasurfaces transforming arbitrary incident waves into arbitrary reflected and transmitted wave…
Electromagnetic Fields Radiated by a Circular Loop with Arbitrary Current
Mohamed A. Salem, Christophe Caloz
We present a rigorous approach to compute the electromagnetic fields radiated by a thin circular loop with arbitrary current. We employ a polar transmission representation along wi…
Manipulating light at distance by a metasurface using momentum transformation
Mohamed A. Salem, Christophe Caloz
A momentum conservation approach is introduced to manipulate light at distance using metasurfaces. Given a specified field existing on one side of the metasurface and specified des…