Metasurface devices (IMAGE)

Optica

Metasurface devices

Caption

Researchers created metasurface devices for linear polarization multichannel transmission and superposition states of spherical and vortex waves. (a) Superposition state of spherical wave and vortex wave under 45° polarized wave incidence. (b) Four-channel transmission of two spherical waves and two vortex waves can be carried under 45° polarized wave incidence. (c) Superposition states of spherical wave and vortex under x and y polarized wave incidence, respectively. (d) Two-channel transmission of a spherical wave and a vortex wave can be carried under x (or y) polarized wave incidence.

Credit

Fuyu Li, University of Electronic Science and Technology of China

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