642 citations · 3.2k across the 96 of their papers we have counts for
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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…
Finite Element Modeling of Metasurfaces with Generalized Sheet Transition Conditions
Srikumar Sandeep, Jian Ming Jin, Christophe Caloz
A modeling of metasurfaces in the finite element method (FEM) based on generalized sheet transition conditions (GSTCs) is presented. The discontinuities in electromagnetic fields a…
Wave Deflection and Shifted Refocusing in a Medium Modulated by a Superluminal Rectangular Pulse
Zoé-Lise Deck-Léger, Alireza Akbarzadeh, Christophe Caloz
We explore the problem of scattering in a medium modulated by a superluminal rectangular pulse, with the pulse modulation realized through transverse excitations. We solve this pro…
A Simple Picosecond Pulse Generator Based on a Pair of Step Recovery Diodes
Lianfeng Zou, Shulabh Gupta, Christophe Caloz
A picosecond pulse generator based on a pair of step recovery diodes (SRD), leveraging the transient response of the SRD PN junction and controlling the pulse width by a resistor,…
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…