Fig. 2 State-of-the-art super-capacity perfect vector vortex beams enabled by a spatial-frequency patching metasurface. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Fig. 2 State-of-the-art super-capacity perfect vector vortex beams enabled by a spatial-frequency patching metasurface.

Caption

A single geometric metasurface is used to form SC-PVVB with multidimensional modulation ability for optical encryption, enabling precise control over the beam's morphology, polarization azimuth and ellipticity angles (left panel). A comparison between the PVVBs of existing works and our method in terms of local and total dimensions, and channels, demonstrating at least 13 distinct data channels with our approach (right panel).

Credit

Zhipeng Yu et al.

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