Sierpinski Fractal Enabled Ultrawideband DNG Polarization Insensitive Metamaterial Absorber

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2022
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Recently, metamaterials have developed a brand-new precedent for improved light absorption. We bring out a three-layer, polarization-insensitive nanostructure for a metamaterial absorber (MMA) that can absorb light in the visible to near-infrared spectrum. With the help of Sierpinski Carpet placed on the metamaterial absorber, the inclination of the fractal geometry to fill space is researched for the purpose of minimizing size. Permittivity and permeability are both negatively correlated in the MMA. Our Sierpinski Carpet schema absorber's reliance on absorption properties has been analyzed using both TE and TM modes at different incident-angles (SMMA). The finite integration approach has been used to simulate the described MM absorber design, and an interference theory model has been used to verify the simulated data. Extensive parametric sweeps and electric and magnetic field characteristics were used to understand the proposed SMMA absorption mechanism. The proposed MMA unit cell may be employed in solar energy harvesting, a variety of diverse optical applications, including sensors, detectors, and imaging.
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Electrical and Computer Engineering
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North South University
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