Work

Hybrid model to simulate optical systems combining metasurfaces and classical refractive elements

Year: 2025

Type: article

Abstract: This paper presents an accurate and fast numerical method to compute the imaging performance of a centimeter-scale optical system comprising at least one metasurface that can be used inside an optimization design loop to allow direct design of the full system. In order to fit in the optimization design process, the optical response of the metasurfaces is approximated with a surrogate model of the locally periodic response of their constitutive meta-atoms described by a relevant set of variables. This surrogate model is used to obtain the performance of imaging systems containing both metasurfaces and refractive lenses using either the generalized Snell's law or a more physically accurate hybrid ray optics/wave optics model that accounts for the diffraction occurring at metasurfaces. We show that the hybrid model is necessary to obtain an accurate prediction of the modulus transfer function of systems containing metasurfaces with non-negligible optical power.

Source: Optics Express

DOI: 10.1364/oe.580729

Authors: Enzo Isnard, Sébastien Héron, Stéphane Lanteri, Mahmoud Elsawy

Institutions: Laboratoire Mécanique des Solides, Laboratoire de Physique des Interfaces et des Couches Minces, Thales (France), ATLANTIS: Modélisation et méthodes numériques pour le calcul d'interactions onde-matière nanostructurée

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: Agence Nationale de la Recherche, Association Nationale de la Recherche et de la Technologie