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Multi-wavelength carpet cloaking based on an ultrathin single layer metamaterial microstructure
Laser Physics Letters ( IF 1.7 ) Pub Date : 2020-05-12 , DOI: 10.1088/1612-202x/ab88d6
Li Jiang 1 , Chengfei Chu 1 , Bo Fang 1 , Meina Zhang 2 , Haiyong Gan 1 , Chenxia Li 1 , Xufeng Jing 1 , Zhi Hong 3
Affiliation  

Ultrathin metasurfaces provide a completely new route to achieve an invisibility cloak through local phase compensation. However, conventional carpet cloaking only works at a single frequency. Here, we propose a dual-wavelength carpet cloaking based on a single layer metasurface. Based on the electromagnetic coupling effect between the outside split square loop and inner metal structure array, the independent phase compensation and reconstruction of the reflected wavefront can be realized. The cloaking can effectively suppress the unexpected scattering and hide an object with arbitrary shape. This ultrathin metasurface cloaking can be applied in illusion optics, radars and antenna systems.

中文翻译:

基于超薄单层超材料微观结构的多波长地毯隐身

超薄超颖表面提供了一条全新的途径,可通过局部相位补偿实现隐形斗篷。但是,传统的地毯掩盖仅在单个频率下起作用。在这里,我们提出了基于单层超表面的双波长地毯掩盖。基于外部开平方环与内部金属结构阵列之间的电磁耦合效应,可以实现独立的相位补偿和反射波阵面的重建。隐蔽物可以有效地抑制意外散射并隐藏任意形状的物体。这种超薄的超表面伪装可以应用于幻觉光学,雷达和天线系统。
更新日期:2020-05-12
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