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

Credit: Light: Science & Applications

a. The MCP metasurfaces and their SEM images. b. Printing and holographic images are reconstructed by one MCP metasurface. Left: a binary image and a grayscale image. Right: different Latin letters reconstructed by incident OAM waves with different topological charges (l = -6, -3, 3, 6) and wavelengths.

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

Credit: Light: Science & Applications

a. Illustration of the OAM demultiplexer working in two wavelengths. b. Experimental results of OAM demultiplexing with wavelengths of 473 and 633 nm based on the MCP metasurfaces.

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

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