biostudies-literatureWang ZFundamental Research Funds for the Central UniversitiesNational Natural Science Foundation of ChinaThe Key Research and Development Program of the Ministry of Science and Technologye2204699https://www.ebi.ac.uk/biostudies/studies/S-EPMC9929113biostudies-literatureUnknown10(5)Polarization, as a vector nature of the electromagnetic wave, plays a fundamental role in optics. Determining the polarization state of light is required by many applications, spanning from remote sensing and material analysis to biology and microscopy. To achieve this goal, conventional methods necessitate cascading of multiple optical components and consequential measurements to estimate the Stokes parameters, rendering the entire optical system bulky, complex, and sensitive. Here a brand-new strategy is introduced for direct polarization readout based on dual-channel neuro-metasurfaces. Neuro-metasurfaces can independently manipulate two orthogonal linearly-polarized waves that can synthesize arbitrary polarization waves with a linear combination. By judiciously designing the output focAdvanced science (Weinheim, Baden-Wurttemberg, Germany)Arbitrary Polarization Readout with Dual-Channel Neuro-Metasurfaces.PMC9929113619751762022YFA1405200119611410102022YFA14047042022YFA1404902Qian CFan ZChen HWang ZfalseArbitrary Polarization Readout with Dual-Channel Neuro-Metasurfaces.Polarization, as a vector nature of the electromagnetic wave, plays a fundamental role in optics. Determining the polarization state of light is required by many applications, spanning from remote sensing and material analysis to biology and microscopy. To achieve this goal, conventional methods necessitate cascading of multiple optical components and consequential measurements to estimate the Stokes parameters, rendering the entire optical system bulky, complex, and sensitive. Here a brand-new strategy is introduced for direct polarization readout based on dual-channel neuro-metasurfaces. Neuro-metasurfaces can independently manipulate two orthogonal linearly-polarized waves that can synthesize arbitrary polarization waves with a linear combination. By judiciously designing the output foc2023-01-01T00:00:00Z2023 Feb2026-06-03T17:11:36.87Z2025-04-04T21:55:07.576ZS-EPMC99291133651964610.1002/advs.202204699