. Implementation strategies for multispectral-compatible camouflage and schematic illustration of the metasurface. (IMAGE)
Caption
Camouflage principles illustration and schematic of the proposed metasurface. (a) Concept illustration of the camouflage principles in different bands. When the multispectral waves incident on the cascaded metasurface, the light in the NIR band (i.e., 0.8–1.6 μm) will be guided to four non-specular angles; the waves in infrared atmospheric windows (i.e., 3–5 μm and 8–14 μm) will be reflected (corresponding to low emissivity in these bands); the light at 10.6 μm will be absorbed; and the high emissivity in 5–8 μm will lead to a broadband heat dissipation. (b) The atmospheric transmittance spectra in the NIR, MWIR, and LWIR bands, as well as the ideal reflectance spectra for infrared multispectral camouflage. (c) The SEM image of the fabricated metasurface. (d) Thermal infrared image of the metasurface held by the researcher at room temperature.
Credit
Xingdong Feng, Shan Jiang, YongAn Huang
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