Efficient Beamforming Using Magneto-Optical Metagratings for Terahertz Communications

This work presents a magneto-optical (MO) meta-grating for beamforming at
$f=300$
GHz. The device comprises a periodic arrangement of aluminum and indium antimonide semiconductor. Numerical results show diffraction angles of
$\pm 45^{\circ}$
, with transmittance and extinction ratios of 0.54 and 0.74, respectively. Results are promising for future dynamic THz communications.