Metagrating solutions for full color single-plate waveguide combinerOksana Shramkova, Valter Drazic, Guillaume Bourcin, Bobin Varghese, Laurent Blondé and Valérie AlliéEPJ Appl. Metamat., 9 (2022) 5DOI: https://doi.org/10.1051/epjam/2022003