Karim Achouri

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (51)

Metasurface surface-wave dispersion analysis and synthesis technique

Olivier Martin, Karim Achouri

The proposed technique allows one to efficiently and quickly retrieve the dispersion diagram of a metasurface from its numerically simulated scattering parameters without resorting to a time-consuming numerical eigensolver. It may also be used to find the ...

2019

Modelling of nonlinear metasurfaces: Second-harmonic generation and Kerr effect

Olivier Martin, Karim Achouri

We present a nonlinear metasurface modelling frame- work based on the generalized sheet transition conditions (GSTC). It may be used to synthesize or analyse the scat- tering behavior of second- and third-order metasurfaces. We specifically study second-ha ...

2019

Tailoring upconversion luminescence with multi-resonant antennas

Olivier Martin, Karim Achouri, Hsiang-Chu Wang

2019

Optical Force Control Using Phase-Gradient Metasurfaces

Olivier Martin, Karim Achouri, Hsiang-Chu Wang

We propose to control the motion of nanoparticles using phase-gradient metasurfaces. The latter are used to generate surface waves, which put the particles into motion, when illuminated by a normally incident plane wave. We present an initial study of the ...

IEEE2018

Homogenization and Scattering Analysis of Second-Order Nonlinear Metasurfaces

Olivier Martin, Karim Achouri, Gabriel David Bernasconi, Jérémy Butet

We present an extensive discussion on the homogenization and scattering analysis of second-order nonlinear metasurfaces. We use the generalized sheet transition conditions (GSTCs) in the frequency-domain to model the electromagnetic responses of nonlinear ...

IEEE2018

Upconversion luminescence enhanced by optical antennas

Olivier Martin, Karim Achouri, Hsiang-Chu Wang

2018

Homogenization and Scattering Analysis of Second-Harmonic Generation in Nonlinear Metasurfaces

Olivier Martin, Karim Achouri, Gabriel David Bernasconi, Jérémy Butet

We propose an extensive discussion on the homogenization and scattering analysis of the second-order nonlinear metasurfaces. Our developments are based on the generalized sheet transition conditions (GSTCs) that are used to model the electromagnetic respon ...

2018

Synthesis and Analysis of Linear and Nonlinear Bianisotropic Metasurfaces

Christophe Caloz, Olivier Martin, Karim Achouri

We present our recent progress pertaining to the synthesis and analysis of bianisotropic linear and nonlinear metasurfaces. These developments are based on the generalized sheet transition conditions (GSTCs), which provide a very complete and general metho ...

IEEE2018

Designing the magnetic second harmonic emission from plasmonic nanostructures

Olivier Martin, Karim Achouri, Gabriel David Bernasconi, Jérémy Butet

2018

Study of the Angular Spectrum of a Bianisotropic Refractive Metasurface at a Dielectric Interface

Christophe Caloz, Karim Achouri

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 existence of three distinct angular regions: a) a rotated transmission cone, b) a mo ...

IEEE2018

Electromagnetic Nonreciprocity

Christophe Caloz, Karim Achouri

We aim at providing a global perspective on electromagnetic nonreciprocity and clarifying confusions that arose in recent developments of the field. We provide a general definition of nonreciprocity and classify nonreciprocal systems according to their lin ...

American Physical Society (APS)2018

Page 3 sur 3