Figure 6
From: Generation of E-band metasurface-based vortex beam with reduced divergence angle
Simulation and measurement results of the intensity and the phase distribution of the Ex field of the vortex beam. The first, second, third, and fourth columns indicate simulated Ex field intensity, simulated Ex field, measured Ex field intensity, and measured Ex field phase distribution, respectively. The first, second, third, and fourth rows indicate the vortex beam generated from the M1, M3, M2, and M4 metasurface, respectively.
