Dielectric Metalens Array for Simultaneous Polarization and Wavefront Mapping in the Visible Spectrum

While traditional polarimetry effectively analyzes polarization states with bulky systems, recent advances have enabled metasurfaces to serve as compact alternatives. Metalens arrays have enabled full-polarization and phase profile determination. However, enhancing their efficiency and spatial resolution remains constrained in submetalens architectures. Here, we develop a shared-aperture TiO₂ metalens array that concurrently focuses six polarization components into a hexagonal lattice configuration. Through single-frame focal field analysis, the system enables comprehensive Stokes parameter reconstruction (4.64% deviation) and phase gradient quantification (1.75 rad/μm maximum). The architecture exhibits minimized cross-talk, permitting accurate characterization of complex vector beams─including radially/azimuthally polarized vortices and diverging wavefronts─with strong agreement to theoretical predictions. This integrated platform presents a promising avenue for applications requiring simultaneous polarization-state analysis, adaptive wavefront control, and quantum optical characterization in space-constrained environments.