Ultrafast modulation in a THz graphene-based flat absorber through negative photoconductivity Academic Article uri icon


  • We present the experimental and theoretical study of an ultrafast graphene based thin film absorption modulator for operation in the THz regime. The flat modulator is composed of a graphene sheet placed on a dielectric layer backed by a metallic back reflector. A near IR pulse induces the generation of hot carriers in the graphene sheet reducing effectively its conductivity. The system provides a platform with ultrafast modulation capability for flat optics and graphene based metasurfaces applications.

altmetric score

  • 0.25

author list (cited authors)

  • Tasolamprou, A. C., Koulouklidis, A. D., Daskalaki, C., Mavidis, C. P., Kenanakis, G., Deligeorgis, G., ... Soukoulis, C. M.

citation count

  • 0

complete list of authors

  • Tasolamprou, Anna C||Koulouklidis, Anastasios D||Daskalaki, Christina||Mavidis, Charalampos P||Kenanakis, George||Deligeorgis, George||Viskadourakis, Zacharias||Kuzhir, Polina||Tzortzakis, Stelios||Economou, Eleftherios N||Kafesaki, Maria||Soukoulis, Costas M

publication date

  • August 2019