Li Siqi, Chen Chen, Wang Guoxi, Ge Suyang, Zhao Jiaqi, Ming Xianshun, Zhao Wei, Li Tao, Zhang Wenfu
Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, State Key Laboratory of Transient Optics and Photonics, Xi'an 710119, China.
Nanjing University, National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulations, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, Nanjing 210093, China.
Phys Rev Lett. 2025 Jan 17;134(2):023803. doi: 10.1103/PhysRevLett.134.023803.
Metasurface polarization optics have attracted considerable attention due to their ability to manipulate independently the wave fronts of different polarization channels with subwavelength scale. Previous methods mainly focused on the condition of complete polarization conversion, restricting the application range of metasurface polarization multiplexing. Here, we proposed a generalized framework of phase manipulation for the metasurface polarization optics, which can realize independent phase control and arbitrary energy distribution of different polarization channels for the arbitrary polarization conversion efficiency. Based on this principle, we experimentally demonstrate tripolarization-channel wave-front control for the arbitrary polarization state (elliptical, circular, and linear). The arbitrary energy distribution of different polarization channels has been achieved via varying the polarization conversion efficiency. The proposed framework significantly improves the performance of metasurface in the polarization multiplexing and energy distribution, and expands the application scope of metasurface in the polarization optics.
超表面偏振光学因其能够在亚波长尺度上独立操纵不同偏振通道的波前而备受关注。以往的方法主要集中在完全偏振转换的条件上，限制了超表面偏振复用的应用范围。在此，我们提出了一种超表面偏振光学的广义相位操纵框架，它可以在任意偏振转换效率下实现不同偏振通道的独立相位控制和任意能量分布。基于这一原理，我们通过实验证明了对任意偏振态（椭圆、圆和线性）的三偏振通道波前控制。通过改变偏振转换效率，实现了不同偏振通道的任意能量分布。所提出的框架显著提高了超表面在偏振复用和能量分布方面的性能，并扩展了超表面在偏振光学中的应用范围。
