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    Area of Science:

    • Electromagnetics
    • Materials Science
    • Nanotechnology

    Background:

    • Metamaterials offer unique electromagnetic properties not found in natural materials.
    • Perfect metamaterial absorbers (PMAs) are crucial for applications like energy harvesting and stealth technology.
    • Developing PMAs with polarization selectivity is a key challenge in advanced optics.

    Purpose of the Study:

    • To design and demonstrate a novel planar bidirectional perfect metamaterial absorber (PMA).
    • To achieve polarization-selective absorption and transmission functionalities.
    • To validate the proposed PMA design through simulations and experimental measurements.

    Main Methods:

    • Utilized a novel planar metamaterial structure for bidirectional absorption.
    • Employed simulation software to analyze electromagnetic performance.
    • Developed a theoretical model to explain the absorption mechanism.
    • Conducted experimental tests using the free-space method on a fabricated sample.

    Main Results:

    • The proposed PMA exhibits near-perfect bidirectional absorption for x-polarized incident waves.
    • The structure acts as a transparent surface for y-polarized incident waves at the same frequency.
    • Simulation results showed good agreement with theoretical predictions.
    • Experimental measurements validated the simulated performance, confirming the PMA's quality.

    Conclusions:

    • A novel planar bidirectional perfect metamaterial absorber with polarization selectivity was successfully developed.
    • The demonstrated PMA effectively absorbs specific polarizations while allowing others to pass through.
    • The consistency between simulated and measured results validates the design's practical applicability.