48 citations · 126 across the 15 of their papers we have counts for
17 papers
Transmittable Nonreciprocal Cloaking
Mojtaba Dehmollaian, Guillaume Lavigne, Christophe Caloz
Cloaking is typically reciprocal. We introduce here the concept of \emph{transmittable nonreciprocal cloaking} whereby the cloaking system operates as a standard omnidirectional cl…
Metasurface Magnetless Specular Isolator
Guillaume Lavigne, Toshiro Kodera, Christophe Caloz
We present a (nongyrotropic) metasurface magnetless specular isolator. This device reflects as a mirror a wave incident under a specified angle in one direction and absorbs it in t…
Magnetless Reflective Gyrotropic Spatial Isolator Metasurface
Guillaume Lavigne, Christophe Caloz
We present the concept of a magnetless Reflective Gyrotropic Spatial Isolator (RGSI) metasurface. This is a birefringent metasurface that reflects vertically polarized incident wav…
Generalized Brewster Effect using Bianisotropic Metasurfaces
Guillaume Lavigne, Christophe Caloz
We show that a properly designed bianisotropic metasurface placed at the interface between two arbitrary different media, or coating a dielectric medium exposed to the air, provide…
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…
Comparison of Tensor Boundary Conditions (TBCs) with Generalized Sheet Transition Conditions (GSTCs)
Mojtaba Dehmollaian, Guillaume Lavigne, Christophe Caloz
This paper compares Tensor Boundary Conditions (TBCs), which were introduced to model multilayered dielectric structures, with Generalized Sheet Transition Conditions (GSTCs), whic…
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…
Mono-cross-anisotropic Metasurface Absorbing Boundary Condition (ABC)
Xiao Jia, Guillaume Lavigne, Christophe Caloz +1
We introduce the concept of Metasurface Absorbing-Boundary Condition (MS-ABC). This represents the first application of metasurface technology to computational electromagnetics. MS…
Metasurface Particle with Independent Transmission and Reflection Full Phase Coverage
Ashutosh Patri, Guillaume Lavigne, Nima Chamanara +1
A metasurface particle with independent transmission and reflection full phase coverage for circularly polarized waves is introduced. This particle is constituted of two parts, one…
Extending the Brewster Effect to Arbitrary Angle and Polarization using Bianisotropic Metasurfaces
Guillaume Lavigne, Christophe Caloz
A bianisotropic metasurface design is proposed for extending the Brewster effect to arbitrary angles and polarizations. The metasurface is synthesized using the surface susceptibil…
Study of the Angular Spectrum of a Bianisotropic Refractive Metasurface at a Dielectric Interface
Guillaume Lavigne, Karim Achouri, Christophe Caloz
We present an initial study of the angular spectrum of a bianisotropic refractive metasurface at an interface between two dielectric media. In this study, we report on the existenc…
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…
Perfectly Refractive Metasurface using Bianisotropy
Guillaume Lavigne, Karim Achouri, Christophe Caloz +2
A passive and reciprocal perfectly refractive metasurface is designed using a general susceptiblity synthesis method. The metasurface uses weak spatial dispersion in the form of bi…
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…
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…