Croce, F. D., Vitali, V., Bucio, T. D., Pennoni, A., Liu, H., Cristiani, I., Gardes, F., Lacava, C., Petropoulos, P. (2026). High-efficiency grating couplers for vertical coupling in thin-film silicon nitride technology. Scientific Reports. https://doi.org/10.1038/s41598-026-44998-0