多层结构绿色植被高光谱伪装材料的设计与制备  

Design and Preparation of Multi-layer Structured Hyperspectral Camouflage Materials for Simulating Green Vegetation

作　　者：范锡宇 赵珍[1] 马剑平 周雪琴[1] FAN Xiyu;ZHAO Zhen;MA Jianping;ZHOU Xueqin(College of Chemical Engineering,Tianjin University,Tianjin 300354,China)

机构地区：[1]天津大学化工学院,天津300354

出　　处：《材料导报》2025年第7期215-222,共8页Materials Reports

摘　　要：高光谱探测对伪装隐身技术提出了极大的挑战,具有植物叶片精细反射光谱特征的伪装材料对于伪装工程领域的发展极其重要。本工作设计了一种具有可见光吸收透射层、近红外吸收透射层、反射调节层和支撑层的多层结构绿色植被高光谱伪装材料。反射调节层的引入使吸收透射层对入射光线发生二次吸收,实现了对伪装材料反射光谱的调控。所制备的多层结构绿色植被高光谱伪装材料在400~2 500 nm波段内具有接近绿色植物的反射光谱曲线,与冬青卫矛、梅树叶片和龙爪槐叶的光谱曲线相关系数分别为0.956 0、0.936 4和0.936 3。本工作所制备的伪装材料具有可调的反射光谱,且光谱匹配性高,结晶水合物用量相对较少,工艺简单,有望成为新一代高光谱探测对抗伪装材料。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—2500 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 0.9560,0.9364,and 0.9363,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.

关 键 词：高光谱探测对抗 绿色植被 反射光谱 伪装材料 光谱调控 复合涂层 

分 类 号：TB332[一般工业技术—材料科学与工程]