Demonstration of ultrafast THz absorption modulation in a graphene-based thin absorber - Koulouklidis, Anastasios D.; Tasolamprou, Anna C.; Daskalaki, Christina; Mavidis, Charalampos P.; Kenanakis, George; Deligeorgis, George; Viskadourakis, Zacharias; Kuzhir, Polina; Kafesaki, Maria; Economou, Eleftherios N.; Soukoulis, Costas M.; Tzortzakis, Stelios (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, 2019)