Abstract: The detection of hyperspectral signals remains particularly challenging in the field of camouflage technology. Camouflage materials with fine reflectance spectra of plant leaves are of paramount importance for the development of camouflage engineering. In this work, a multi-layer structured hyperspectral camouflage material comprising visible light absorption-transmission layer, near infrared absorption-transmission layer, reflection-regulating layer, and supporting layer was conceptually proposed for the simulation of green vegetation. The incident light could be reabsorbed in the absorption-transmission layer thank to the introduction of reflection-regulating layer, thus realizing the modulation of reflectance spectra of camouflage materials. The prepared camouflage materials exhibited reflectance similar to green vegetation within 400—2 500 nm wavelength scope. The reflectance plots overlapped satisfactorily with those of leaves of Euonymus, Winter-sweet, and Sophora japonica, and the correlation coefficients could be as high as 0.956 0, 0.936 4, and 0.936 3, respectively. The camouflage material presents tunable reflectance spectra with great resemblance to plants. Moreover, the low crystalline hydrate content and simple preparation process make it a highly promising candidate for the new generation hyperspectral detection countermeasure material.
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2025, Vol. 39 
