Metasurfaces offer promising structures for controlling the wavefront of light. The development of such structures is evidence for numerous ways to alter on demand light properties such as amplitude, phase, and polarization. However, the simultaneous control of all parameters of light over a wide bandwidth is still a great challenge. With polarization multiplexing, we have achieved the lesser goal of simultaneous control of phase and amplitude over a 1000 nm bandwidth using a plasmonic nanoslit array associated with the traditional detour phase. In a proof-of-concept experiment, we demonstrate 3D object reconstruction and polarization multiplexing images at various prescribed wavelengths from 473 to 1550 nm using a specially designed meta-hologram. Benefiting from high controllability of amplitude, phase, and polarization, meta-holograms offer great potential in future applications such as 3D displays, optical communications, and beam shaping.

中文翻译：

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在1000 nm带宽上具有波前全参数控制的元全息图

超表面为控制光的波前提供了有希望的结构。这种结构的发展为改变需求的光属性（例如幅度，相位和偏振）的多种方法提供了证据。然而，在宽带宽上同时控制光的所有参数仍然是巨大的挑战。通过偏振复用，我们实现了一个较小的目标，即使用与传统de回相位相关联的等离子体纳米狭缝阵列，在1000 nm带宽上同时控制相位和幅度。在概念验证实验中，我们使用特殊设计的全息图，演示了在473至1550 nm的各种规定波长下的3D对象重建和偏振复用图像。得益于幅度，相位和极化的高度可控性，