Generating all-optical frequency-multiplexed THz logic operations via fractal metasurfaces. - Momtazpour, Mohammadhossein; Xu, Lei; Feng, Dou; Chaudhary, Anjali; Eberl-Craske, Dominic; Tsakonas, Costas; Ying, Cuifeng; Koutsogeorgis, Demosthenes C.; Navarro-Cía, Miguel; Rahmani, Mohsen (Applied Physics Letters, 2026)