Intelligent Metasurfaces with Continuously Tunable Local Surface Impedance for Multiple Reconfigurable Functions - Liu, Fu; Tsilipakos, Odysseas; Pitilakis, Alexandros; Tasolamprou, Anna C.; Mirmoosa, Mohammad Sajjad; Kantartzis, Nikolaos V.; Kwon, Do-Hoon; Kafesaki, Maria; Soukoulis, Costas M.; Tretyakov, Sergei A. (Physical Review Applied, 2019)