Fig. 6: Dual-hologram. | Nature Communications

Fig. 6: Dual-hologram.

From: Infrared beam-shaping on demand via tailored geometric phase metasurfaces employing the plasmonic phase-change material In3SbTe2

Fig. 6

A Schematic sketch of the employed dual-holography concept. The IST metasurface leads to two different holograms at specific distances behind the metasurface. B Applied phase mask computed with a diffractive neural network. C Measurement of the holograms displaying “aIST” at z1 = 16 cm with a distorted lattice structure and “cIST” with a periodic lattice at z2 = 21 cm. D Numerical simulations clearly resolve the two holograms at different distances behind the metasurface.

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