We investigate theoretically the controlled magneto-optical Faraday rotation (MO-FR) through graphene-based metasurfaces placed on electromagnetically induced transparency (EIT) substrate at terahertz (THz) frequencies. MO-FR and transmission of the probe light are studied by changing the electric field that manipulates the group index of the substrate. The MO-FR can be controlled and enhanced by varying the periodic width of graphene ribbons. The polarization plane of MO-FR changes with 180 degrees while increasing the probe field detuning through the EIT substrate. The zero-crossing of MO-FR shifts to higher THz frequencies with increasing the magnetic field. The transmission of the probe light pulse at THz frequencies is investigated with the probe detuning and the applied magnetic field.

我们通过放置在太赫兹 (THz) 频率的电磁感应透明 (EIT) 基板上的基于石墨烯的超表面，从理论上研究了受控磁光法拉第旋转 (MO-FR)。MO-FR 和探测光的传输是通过改变操纵基板的基团指数的电场来研究的。MO-FR 可以通过改变石墨烯带的周期性宽度来控制和增强。MO-FR 的偏振面随 180 度变化，同时增加了通过 EIT 基板失谐的探测场。MO-FR 的过零随着磁场的增加而转移到更高的太赫兹频率。通过探头失谐和外加磁场研究了 THz 频率下探头光脉冲的传输。