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    We developed a reconfigurable metasurface using adjustable anisotropic tiles. This novel jigsaw-puzzle approach enables diverse functionalities like polarization conversion and anomalous reflection with a single design.

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    Area of Science:

    • Metamaterials and Nanophotonics
    • Electromagnetics and Optics

    Background:

    • Metasurfaces offer unique electromagnetic properties but often require complex fabrication for reconfigurability.
    • Designing multifunctional and reconfigurable metasurfaces remains a significant challenge in nanophotonics.

    Purpose of the Study:

    • To demonstrate a simple and effective reconfigurable metasurface with multiple functionalities.
    • To introduce a modular design strategy using anisotropic tiles for versatile metasurface applications.

    Main Methods:

    • Investigating and manufacturing anisotropic tiles as fundamental building blocks.
    • Assembling these tiles into a metasurface, akin to a jigsaw puzzle, allowing independent adjustment.
    • Utilizing a 6x6 array of tiles for experimental demonstration.

    Main Results:

    • Successfully realized polarization conversion, anomalous reflection, and diffusion functionalities.
    • Validated the design through both simulated and measured results.
    • Demonstrated the independent adjustability of each tile for diverse functional layouts.

    Conclusions:

    • The proposed jigsaw-puzzle metasurface offers a simple and effective strategy for designing reconfigurable devices.
    • This modular approach facilitates the creation of versatile metasurfaces with multiple electromagnetic functions.
    • The independent adjustability of anisotropic tiles provides a powerful tool for on-demand functional control in metamaterials.