Digital coding metasurface, which provides a new approach to link the physical world and information science, has been quickly developed in recent years. However, all previously reported metasurfaces cannot achieve independent controls of different polarizations in both transmission and reflection spaces at the same time. In this work, a reconfigurable anisotropic digital coding metasurface loaded with electronically controlled PIN diodes is proposed that can independently manipulate not only the near/far‐field pattern but also the transmission and reflection modes of the electromagnetic waves under different polarizations. As a validation example, a multifunctional holographic imaging metasurface is designed, fabricated, and measured. Both simulated and measured results show that orthogonally polarized waves (vertical and horizontal polarizations) can be manipulated to achieve different images, and the transmission and reflection modes of the differently‐polarized images can be independently controlled in real time by changing the state of the loaded PIN diodes.

中文翻译：

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可重构各向异性数字编码超表面对电磁全息图的透射反射控制和偏振控制

近年来，数字编码超表面技术提供了一种将物理世界与信息科学联系起来的新方法，并且得到了迅速发展。然而，所有先前报道的超表面不能同时实现对透射和反射空间中不同极化的独立控制。在这项工作中，提出了一种装有电子控制PIN二极管的可重构各向异性数字编码超表面，它不仅可以独立操纵近/远场模式，而且可以独立操纵不同极化下的电磁波的传输和反射模式。作为验证示例，设计，制造和测量了多功能全息成像超表面。