Metasurfaces can control the phase, amplitude and polarization of electromagnetic waves, providing a new method for the design of cloaking devices. At present, most of the metasurface carpet cloaking devices are based on metal structure with larger ohmic loss, which severely limits the efficiency of the devices. Here, we propose to use all dielectric unit structure to construct metasurface layer. By using local phase compensation principle, all dielectric metasurface carpet cloaking can be designed in terahertz region. Based on the numerically simulation of near field and far field characteristics, the cloaking effect can be confirmed. The incident wavefront is reflected by the cloaking device and the plane wave characteristics can be recovered well. The cloaking effect can be effective in a broadband range from 0.3 to 0.58 THz. Moreover, the proposed all dielectric metasurface cloaking technology can be extended to the visible light and microwave range.

超表面可以控制电磁波的相位、幅度和极化，为隐身装置的设计提供了一种新方法。目前，大多数超表面地毯隐身装置都是基于具有较大欧姆损耗的金属结构，这严重限制了装置的效率。在这里，我们建议使用所有介电单元结构来构建超表面层。通过使用局部相位补偿原理，可以在太赫兹区域设计所有介电超表面地毯斗篷。基于近场和远场特性的数值模拟，可以确认隐身效应。入射波前被隐身装置反射，可以很好地恢复平面波特性。隐形效果在 0.3 至 0.58 THz 的宽带范围内有效。而且，