Figure 2 | Depth- and polarization-gated optical encryption through metasurface-generated 3D vectorial light fields. (IMAGE)

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

Figure 2 | Depth- and polarization-gated optical encryption through metasurface-generated 3D vectorial light fields.

Caption

Figure 2 | Depth- and polarization-gated optical encryption through metasurface-generated 3D vectorial light fields. a Schematic of the depth and polarization based encryption strategy, in which symbols are accessible only with the correct polarization and axial position. b-c Experimental decoding results for (b) “CEAS” and (c) “1912” with and without the key. Scale bars: 100 μm.

Credit

Ting Xu et al.

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