Phase-Shifting Structured Illumination with a Polarization-Encoded Metasurface.

ABSTRACT: Phase-shifting structured illumination is a powerful technique used across diverse imaging modalities including 3D surface measurement, quantitative phase imaging, and super-resolution microscopy. However, conventional implementations often rely on mechanically or optoelectronically driven complex systems, limiting the compactness, stability, and integration. Here, we present a polarization-controlled dielectric metasurface that generates phase-shifting fringe patterns in the visible spectrum, enabling compact and robust structured light projection. The metasurface encodes distinct phase gratings for orthogonal polarizations, producing fringe patterns with lateral displacements that vary with the transmitted polarization. We experimentally demonstrate high-quality fringe generation and app

SUBMITTER: Yu L 

PROVIDER: S-EPMC12314901 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature