Research Article
Controlling Conical Beam Carrying Orbital Angular Momentum with Transmissive Metasurface
Figure 4
Results for (a) l = 2 and δr = 0°, (b) l = 2 and δr = 15°, and (c) l = 3 and δr = 0°. The upper panels show the designed phase function of the metasurface for generating a conical beam carrying OAM, and the bottom panels show the simulated 2D far-field radiation patterns of the metasurface.
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