Fig. 6: Optically measured results obtained from the asymmetric wavefront generation metasurface. | Microsystems & Nanoengineering

Fig. 6: Optically measured results obtained from the asymmetric wavefront generation metasurface.

From: Optical spin-symmetry breaking for high-efficiency directional helicity-multiplexed metaholograms

Fig. 6

Optically measured results obtained after characterization of the 300 × 300 μm2 metahologram, displaying the generation of two holographic images for RCP light incident in the a backward and b forward directions (see supplementary video part ‘b’). c Optical characterization setup used in the amplitude profile measurement of the metahologram50. d Polarization conversion ratio (PCR) of the proposed metasurface. At the designed wavelength of 632.8 nm, the simulated PCR is 91%.

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