Abstract
Electromagnetic metasurface technology is one of the most promising technologies for electromagnetic energy regulation. It is formed by an artificial periodic structure of discrete subwavelengths at the interface, allowing wavefront control and polarization control at the subwavelength scale, exhibiting a variety of special electromagnetic response capabilities, including abnormal beam bending, polarization transformation, electromagnetic wave absorption, etc. We propose a wide-angle, polarization-insensitive infrared perfect metasurface absorber made of an opaque gold ground layer, a dielectric spacer layer, and a hole-shaped gold patch on the spacer layer. The absorption spectrum of the metasurface absorber is simulated by the finite element method, and the results show that the absorber produces an absorption peak with a maximum absorption rate of 99.91% and a half-height and full width of 0.52um in the visible light band.
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