Fig. 4: Bilayer metasurface for polarization-rotation multiplexed multifunctional holography.
From: Observation of full-parameter Jones matrix in bilayer metasurface
a Schematic of the two layer metasurfaces with different rotation angle ϕ = 0°, 90°, 180°, and 270°. The arrows on the metasurfaces show the relative rotation angles between the two layers. b Measured holographic images under the four different combinations of the incident and analyzed polarizations with rotation angles of ϕ = 0°(first row), 90°(second row), 180°(third row) and 270°(fourth row). The holographic images are designed at 1500 μm above the second layer in the glass substrate. The incident and analyzed polarizations are indicated at left side and right side, respectively. All panels share the same scale bar in the lower left one.
