Magnetostatic Field Assisted Tunability and Polarization Conversion in Patterned Graphene Terahertz Metamaterials

Graphene metamaterials are ideal platforms for dynamically controlling THz waves due to their unique tunability and reconfigurability. However, most research focused on the electrostatic field based tuning method. Here, we numerically explored the distinct effect of external magnetostatic field on the transmission properties of patterned graphene metamaterials (SRR, H-shaped and eSRR-shaped resonators). Results show that magnetic tuning can serve as an effective method to modulate the properties of resonances. Additionally, polarization conversion and Faraday rotation in graphene metamaterials induced by magnetic field is analyzed. Our results will provide a new routine for the realization of tunable and functional graphene-based THz devices.