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Proposed metasurface perfect absorber shows over 90% absorptivity in wide wavelengths, highlighting efficiency.
We have proposed an ultra-wideband GST-based metasurface perfect absorber(MPA). Within the TM and TE polarization states, this MPA maintains an average absorptivity of 92.3% and 93.6% over the wavelength range of 200-1500 nm. Notably, even at an incidence angle of 70°, the average absorptivity of the MPA remains above 80% for the TM polarization.
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Liu et al. (2025) studied this question.
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