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    This study presents a new hologram method using geometric metasurfaces for precise polarization measurement. The technique efficiently determines light

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    Area of Science:

    • Optics and Photonics
    • Materials Science

    Background:

    • Polarization measurement is essential for diverse scientific and technological applications.
    • Geometric metasurfaces offer novel capabilities for polarization-sensitive optical devices.
    • Holographic techniques are being explored for advanced optical measurements.

    Purpose of the Study:

    • To propose and experimentally demonstrate a novel hologram-based method for measuring the polarization state of light.
    • To utilize reflective geometric metasurfaces for broadband polarization analysis.

    Main Methods:

    • A reflective-type metasurface hologram was designed and fabricated.
    • The metasurface hologram was used to generate holographic images of a graphene pattern.
    • Incident light's polarization state (ellipticity and helicity) was determined by analyzing the intensities of specific holographic light spots.

    Main Results:

    • Successful experimental demonstration of the proposed hologram method for polarization measurement.
    • The method accurately measures light ellipticity and helicity based on intensity variations of circular polarization states.
    • The reflective geometric metasurface device exhibits broadband operation.

    Conclusions:

    • The developed metasurface hologram provides an effective new tool for polarization state measurement.
    • The broadband capability of reflective geometric metasurfaces enhances the applicability of this polarization measurement technique.
    • This work opens avenues for advanced polarization-sensitive optical applications.