As an excellent holographic information carrier, metasurface holograms possess the advantages of subwavelength footprint, leading to large field of view and high resolution. Meanwhile, intelligent algorithms should be developed to fully exploit the flexible modulation properties provided by metasurfaces. Here, two amplitude holograms with quantitatively correlation are realized using the photon sieve as the amplitude modulation device. A new iterative algorithm is developed to obtain the amplitude profiles of the two holograms with correlation, which can make the two profiles mutually connect by simply adding/erasing dynamic pixels. Two photon sieves composed of nanoholes arrays are fabricated to demonstrate the feasibility of the scheme. This amplitude holography method can operate throughout the entire visible and near‐infrared wavelength regions with polarization independence, and it is expected to achieve switchable metasurface holography with the development of materials science. Such scheme promises to be applied in compact data storage, dual pattern recognition, optical encryption, and so on.

中文翻译：

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基于光子筛的定量相关振幅全息术

作为出色的全息信息载体，超表面全息图具有亚波长足迹的优势，从而带来了广阔的视野和更高的分辨率。同时，应该开发智能算法以充分利用超颖表面提供的灵活调制特性。在此，使用光子筛作为振幅调制装置，实现了具有定量相关性的两个振幅全息图。开发了一种新的迭代算法来获得具有相关性的两个全息图的振幅轮廓，这可以通过简单地添加/删除动态像素来使两个轮廓相互连接。制作了两个由纳米孔阵列组成的光子筛，以证明该方案的可行性。这种振幅全息方法可以在整个可见光和近红外波长区域内操作，并且具有偏振独立性，随着材料科学的发展，有望实现可切换的超表面全息术。这种方案有望应用于紧凑型数据存储，双模式识别，光学加密等。