642 citations · 3.2k across the 96 of their papers we have counts for
9 papers · 2 filters
Space-Wave Routing via Surface Waves Using a Metasurface System
Karim Achouri, Christophe Caloz
We introduce the concept of a metasurface system able to route space wave via surface waves. This concept may be used to laterally shift or modulate the beam width of scattered wav…
Optical Isolation based on Space-time Engineered Asymmetric Photonic Bandgaps
Nima Chamanara, Sajjad Taravati, Zoé-Lise Deck-Léger +1
Nonreciprocal electromagnetic devices play an important role in modern optical and microwave technologies. Conventional methods for realizing such systems are incompatible with int…
Spontaneous Emission and Light Extraction Enhancement of Light Emitting Diode Using Partially-Reflecting Metasurface Cavity (PRMC)
Luzhou Chen, Karim Achouri, Themos Kallos +1
The enhancement of the power conversion efficiency (PCE), and subsequent reduction of cost, of light emitting diodes (LEDs) is of crucial importance in the current lightening marke…
Synthesis and Applications of Birefringent Metasurfaces
Karim Achouri, Guillaume Lavigne and, Christophe Caloz
Birefringent metasurfaces are two-dimensional structures capable of independently controlling the amplitude, phase and polarization of orthogonally polarized incident waves. In thi…
Dielectric Resonator Metasurface for Dispersion Engineering
Karim Achouri, Ali Yahyaoui, Shulabh Gupta +2
We introduce a practical dielectric metasurface design for microwave frequencies. The metasurface is made of an array of dielectric resonators held together by dielectric connectio…
Diagrammatic Explanation of the Reverse Doppler Effect in Space-Time Modulated Photonic Crystals
Zoé-Lise Deck-Léger, Maksim Skorobogatiy, Christophe Caloz
An inverse Doppler shift occurs in a photonic crystal (PC) bounded by a moving wall. The interpretation of this result has stirred some controversy. In this paper, we address the p…