Fig. 1: Illustration of the design of MCP metasurface and the evolution of OAM manipulation based on metasurfaces. | Light: Science & Applications

Fig. 1: Illustration of the design of MCP metasurface and the evolution of OAM manipulation based on metasurfaces.

From: Multiplexed manipulation of orbital angular momentum and wavelength in metasurfaces based on arbitrary complex-amplitude control

Fig. 1

a Printing and holographic images are shown through MCP metasurface when incident beams are plane and OAM waves with specific wavelengths. b The evolution of OAM manipulation based on metasurfaces can be divided into three parts: phase-only metasurface, complex-amplitude metasurface, and multi-wavelengths complex-amplitude metasurface. n and m, respectively, represent the number of topological charges and wavelengths. The data dimensions increase with the evolution path. c The illustration of the MCP metasurfaces, including the SEM image and diagram of MCP. The scale bar represents 500 nm and the blocks with different colors represent the nanopillars with different sizes

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