Paper 14085-3
Paper 14085-3
Metagrating design for compact AR waveguide-based architectures
14 April 2026 • 09:40 - 10:00 CEST | Luxembourg/Salon 2 (Niveau/Level 0)
Abstract
In this work, we introduce a compound metagrating design that enables the simultaneous optimization of the light engine, coupling structure, and waveguide geometry. Using both monolayer and multilayer metagrating configurations, we demonstrate up to a twofold reduction in waveguide thickness for a silicon carbide (SiC) waveguide with a 70° diagonal field of view (FOV), while preserving in-coupling grating dimensions. Leveraging forward and inverse design optimization, our single- and multilayer architectures enhance diffraction efficiency and overall optical performance, offering a compact, high-performance solution for next-generation AR near-eye display systems.
Presenter
ICube (France), Univ. de Strasbourg (France), CNRS (France)
Oksana Shramkova received her degree in Solid-State Physics from the National Technical University “Kharkov Polytechnic Institute” (Ukraine), her PhD in Radiophysics from the Usikov Institute of Radiophysics and Electronics of the NAS of Ukraine, and her Habilitation degree in Physics from the University of Rennes (France). She has 25 years of experience in academic and industrial research and development, working in Ukraine, the UK, Greece, Belgium and France. She is currently a Research Director at CNRS, France. Her current research spans a broad range of optical effects in photonic structures, including photonic nanojets, scattering of electromagnetic waves by systems with nanoparticles, sensors, diffraction gratings, and metasurfaces. She has authored and co-authored over 150 refereed journal and conference papers and over 40 patent applications.