54 citations · 150 across the 23 of their papers we have counts for
7 papers · 1 filter
Critical Angle at a Moving Interface Formed by a Space-Time Modulation Step
Zhiyu Li, Xikui Ma, Christophe Caloz
This paper addresses the problem of wave scattering at a moving interface formed by a space-time modulation step. Specifically, it derives, using the technique of frame hopping wit…
Nonreciprocal Phase Gradient Metasurface: Principle and Transistor Implementation
Guillaume Lavigne, Christophe Caloz
We introduce the concept of nonreciprocal nongyrotropic phase gradient metasurfaces. Such metasurfaces are based on bianisotropic phase shifting unit cells, with the required nonre…
Angle-Independent Nongyrotropic Metasurfaces
Guillaume Lavigne, Christophe Caloz
We derive a general condition for angle-independent bianisotropic nongyrotropic metasurfaces and present two applications corresponding to particular cases: an angle-independent ab…
Transmissive Suppressed-Order Diffraction Grating (SODG)
Ashutosh Patri, Guillaume Lavigne, Christophe Caloz
We present a novel type of Suppressed-Order Diffraction Grating(SODG). An SODG is a diffraction grating whose diffraction orders have all been suppressed except one that is selecte…
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…
Nonreciprocal Electromagnetic Scattering from a Periodically Space-Time Modulated Slab and Application to a Quasisonic Isolator
Sajjad Taravati, Nima Chamanara, Christophe Caloz
Scattering of obliquely incident electromagnetic waves from periodically space-time modulated slabs is investigated. It is shown that such structures operate as nonreciprocal harmo…