Fig. 4: Characterization of arbitrary-polarization multicolor vector holography metasurface.
From: Continuous polarization–wavelength mapping with nonlocal metasurfaces
a Arbitrary polarization states mapped to five representative wavelengths on the Poincaré sphere. Input (blue) and output (red) states are designed as conjugate pairs, mirrored about the equator. b Target vector holographic image, where each lobe encodes a unique wavelength–polarization channel. c Simulated and measured holographic reconstructions, demonstrating polarization–wavelength decoupling and inter-channel isolation. d Relative efficiency across the five vectorial channels, normalized by peak channel intensity. e Polarization contrast matrix, quantifying vectorial fidelity across designed polarization–wavelength states
