Study on Optical Properties of Double-Periodic Structures Containing Tilted Graphene-Based Hyperbolic Metamaterials

We have investigated the optical properties of the double-periodic structure containing graphene-based hyperbolic metamaterial using the transfer matrix method and the effective medium theory at the Terahertz frequency region. Our findings reveal that this structure may have multiple band gaps in hyperbolic and elliptical frequency regions. Moreover, it shows that the transmission and absorption for TM polarization depend on both graphene chemical potential and optical axis orientation of the hyperbolic metamaterial layers. However, in the TE polarization case, these optical properties only depend on graphene chemical potential.