Tunable plasmon-induced transparency based on asymmetric H-shaped graphene metamaterials Project supported by the Key Science and Technology Research Project of Henan Province, China (Grant Nos. 162102210164 and 1721023100107) and the Natural Science Foundation of Henan Educational Committee, China (Grant No. 17A140002). |
(color online) (a) Transmission spectra of x-axial symmetric H-shaped structure at different values of polarization angle θ, and (b)–(d) electric field and surface current distribution at 2.01 THz, 2.3 THz, and 2.63 THz with θ = 90°. |