In recent years, much effort is dedicated to the generation of vectorial optical fields with an arbitrary spatially varying polarization distribution by means of metasurfaces. However, simultaneous and independent control of the amplitude, phase, and polarization is still challenging, especially for the multichannel generation of a vectorial optical field with an angle‐multiplexed functionality. Here, a facile route, called coherent pixel polarization metaholography, is proposed to realize multichannel, angle‐multiplexed, and arbitrary spatially varying polarization fields and demonstrate how to enable a fully independent realization of full Poincaré beams (lemon, start, spider, and web beams), dual‐way switching print images, vectorial print images, and optical polarization knot profiles. Importantly, the demonstrated angle‐multiplexed metasurfaces have an independently controllable handedness and azimuth and can possess up to four channels. Such angle‐multiplexed multichannel arbitrary spatial polarization fields may enable various applications, including optical dynamic displays, information communication, optical encryption, and quantum experiments.

中文翻译：

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完全控制多通道，角度复用和任意空间变化的偏振场

近年来，人们致力于通过超表面产生具有任意空间变化的偏振分布的矢量光学场。但是，同时，独立地控制幅度，相位和偏振仍然是一项挑战，特别是对于具有角度复用功能的矢量光场的多通道生成。在这里，提出了一种称为相干像素极化超全息术的简便方法，以实现多通道，角度复用和任意空间变化的极化场，并演示如何实现完全独立的完整庞加莱光束（柠檬色，起始色，蜘蛛状和网状）光束），双向转换打印图像，矢量打印图像和光学偏振结轮廓。重要的，演示的角度多角度超颖表面具有独立可控的惯性和方位角，最多可具有四个通道。这种角度多路复用的多通道任意空间极化场可以实现各种应用，包括光学动态显示，信息通信，光学加密和量子实验。