In this work we propose a new type of metagrating solution based on a combination of two diffraction gratings embedded inside the waveguide. We demonstrate that the proposed design has high intensity across a wide angular range and can be used as single waveguide full color combiner for AR application.
“Full color waveguide combiner with embedded metagrating.“, O. Shramkova, L. Blondé, V. Drazic, B. Varghese, V. Allié, 15th International Congress on Artificial Materials for Novel Wave Phenomena – Metamaterial 2021, New-York, USA.