Optical metasurfaces have shown unprecedented capabilities to control the two-dimensional distributions of phase, polarization, and intensity profiles of optical waves. Here, a TiO₂ nanostructure functioning as a nano-polarizer was optimized considering that an anisotropic nanostructure is sensitive to the polarization states of incident light. We demonstrate two metasurfaces consisting of nano-polarizer arrays featured with different orientations, which can continuously manipulate the intensity distribution of the output light cell by cell according to Malus law and clearly display the detailed information of the target image. These metasurfaces have potential application in ultracompact displays, high-density optical information storage, and many other related polarization optics fields.

We present a silicon-nanobrick metasurface for dual-channel polarization-multiplexed holography at 1.55 μm. A Jones-matrix design combined with a Fresnel-based Gerchberg–Saxton algorithm maps the target phase profiles to nanobrick dimensions and orientations, enabling combined propagation-phase and geometric-phase control. Numerical simulations demonstrate holographic reconstruction for orthogonal linear, circular, and elliptical polarization pairs. The selected meta-atoms exhibit simulated power transmittances above 70% along both principal axes under periodic boundary conditions. The circular-polarization design is fabricated using electron beam lithography and hard-mask etching, and polarization-selective far-field reconstruction is experimentally observed. Further numerical analysis demonstrates continuous variation of the relative reconstructed intensities along an incident-polarization trajectory. Under an ideal collection and analyzer model, separately optimized elliptical analyzers provide central-signal suppression of 19.02 and 18.78 dB while retaining 64.30% and 61.71% of the corresponding target-image signals. An additional simulated design reconstructs two images within the same spatial region, yielding polarization-channel extinction ratios of 9.30 and 9.33 dB under fixed circular-analyzer conditions. These results demonstrate a silicon-based implementation of dual-channel holographic encoding and provide quantitative characterization of polarization-selective readout.