Metasurfaces hold great potentials for advanced holographic display with extraordinary information capacity and pixel sizes in an ultrathin flat profile. A dual-polarization channel to encode two independent phase profiles or spatially multiplexed meta-holography by interleaved metasurfaces are captivated popular solutions to projecting multiplexed and vectorial images. However, the intrinsic limit of orthogonal polarization-channels, their crosstalk due to coupling between meta-atoms, and interleaving-induced degradation of efficiency and reconstructed image quality set great barriers for sophisticated meta-holography from being widely adopted. Here we report a noninterleaved TiO2 metasurface holography, and three distinct phase profiles are encoded into three orthogonal polarization bases with almost zero crosstalk. The corresponding three independently constructed intensity profiles are therefore assigned to trichromatic (RGB) beams, resulting in high-quality and high-efficiency vectorial meta-holography in the whole visible regime. Our strategy presents an unconventionally advanced holographic scheme by synergizing trichromatic colors and tripolarization channels, simply realized with a minimalist noninterleaved metasurface. Our work unlocks the metasurface's potentials on massive information storage, polarization optics, polarimetric imaging, holographic data encryption, etc.

中文翻译：

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具有非交错介电超表面的三色和三极化通道全息照相。

超表面具有超薄的平面轮廓，具有超凡的信息容量和像素尺寸的高级全息显示技术具有巨大的潜力。一种通过交叉的超颖表面对两个独立的相位剖面或空间复用的全息图进行编码的双极化通道，是投影复用和矢量图像的一种受人欢迎的解决方案。然而，正交极化通道的固有局限性，由于亚原子之间的耦合而产生的串扰，以及交织引起的效率下降和图像质量的重建为复杂的亚全息术设置了巨大的障碍。在这里，我们报告了一种非交错的TiO2超表面全息技术，并且将三个不同的相位剖面编码为三个正交偏振基，且串扰几乎为零。因此，将相应的三个独立构造的强度轮廓分配给三色（RGB）光束，从而在整个可见光范围内产生高质量和高效率的矢量亚全息。我们的策略通过协同三色色和三极化通道提出了一种非常规的高级全息方案，只需使用极简的非交错超颖表面即可实现。我们的工作释放了超大表面在大量信息存储，偏振光学，偏振成像，全息数据加密等方面的潜力。我们的策略通过协同三色色和三极化通道提出了一种非常规的高级全息方案，只需使用极简的非交错超颖表面即可实现。我们的工作释放了超大表面在大量信息存储，偏振光学，偏振成像，全息数据加密等方面的潜力。我们的策略通过协同三色色和三极化通道提出了一种非常规的高级全息方案，只需使用极简的非交错超颖表面即可实现。我们的工作释放了超大表面在大量信息存储，偏振光学，偏振成像，全息数据加密等方面的潜力。