HÉRON , Sébastien

Resonant metasurfaces are of paramount importance in addressing the growing demand for reduced thickness and complexity, while ensuring high optical efficiency. This becomes particularly crucial in overcoming fabrication challenges associated with high aspect ratio structures, thereby enabling seamless integration of metasurfaces with...

Resonant metasurfaces are of paramount importance in addressing the growing demand for reduced thickness and complexity, while ensuring high optical efficiency. This becomes particularly crucial in overcoming fabrication challenges associated with high aspect ratio structures, thereby enabling seamless integration of metasurfaces with...

In metasurface design, the use of look-up tables based on a local periodicity approximation have been tradi-tionally employed, but can result in sub-optimal designs due to lack of consideration of near-field couplingeffects, which are particularly important for resonant systems. This paper explores the benefits of taking intoaccount near-field...

In recent years, metasurfaces have emerged as promising components for reducing the size and complexity ofoptical imaging systems. Nevertheless, their incorporation into these systems remains a challenge due to thedifference between the numerical tools used in the design of conventional imaging systems (ray tracing) and thedesign of...

We demonstrate phase-matched second-harmonic generation (SHG) from three-dimensional meta-materials consisting of stacked metasurfaces. To achieve phase matching, we utilize a novel mech-anism based on phase engineering of the metasurfaces at the interacting wavelengths, facilitatingphase-matched SHG in the unconventional backward direction. By...

A new class of quasi 2D optical components, known as metasurfaces and exhibiting exceptional optical properties have emerged in recent years. The scattering properties of their subwavelength patterns allow molding the wavefront of light in almost any desired manner. While the proof of principle is demonstrated by various approaches, only a...

Allowing subwavelength-scale-digitization of optical wavefronts to achieve complete control of light at interfaces, metasurfaces are particularly suited for the realization of planar phaseholograms that promise new applications in high-capacity information technologies. Similarly, the use of orbital angular momentum of light as a new degree of...

The design of intrinsically flat two-dimensional optical components, i.e., metasurfaces,generally requires an extensive parameter search to target the appropriate scattering propertiesof their constituting building blocks. Such design methodologies neglect important near-fieldinteraction effects, playing an essential role in limiting the device...