Fabrication and characterization results of the metasurface. (IMAGE)
Caption
(a) and (b) show the photograph and SEM images of the prepared metasurface sample, respectively. (c) Measured specular and integral reflectance spectra of the metasurface in 0.8~1.6 μm. (d) The measured emissivity of the metasurface and reference in 3~14 μm. (e) Thermal infrared image of the fabricated sample held by the researcher at room temperature. (f) The radiative temperatures of the metasurface, reference, and glass at different heating temperatures in the LWIR band. The solid lines represent the radiative temperatures calculated based on the average emissivity within this range, the different symbols (including stars, circles, and triangles) represent the radiative temperatures obtained from the infrared camera, and the dashed lines correspond to the radiative temperatures associated with different emissivities. (g) The surface and radiation temperatures at various input powers, and their differences between the metasurface and the reference. (h) Thermal infrared images of the metasurface and reference at different input powers.
Credit
Xingdong Feng, Shan Jiang, YongAn Huang
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