Design of Tunable Devices at Terahertz Frequencies Based on Quasi-Photonic Crystals Incorporated with Graphene

Reza Ghayoor,Alireza Keshavarz

Fig. 4 (Color online) One-dimensional unit cell structure of the double-period sequence-built structure as stacking of dielectric layers incorporating graphene under wave radiation with incident angle \(\theta\). H and L denote the high and low refractive index material, respectively and G represents the graphene thin layer with conductivity of \(\sigma_g\).