Schematic illustration of the broadband high-efficiency polymerized liquid crystal (LC) metasurfaces with spin-multiplexed functionalities based on wavefront engineering and holographic synthesis. The low-cost LC lenses prepared by the photoalignment technology can provide a promising approach for high-throughput nanofabrication, which is of great significance to multifunctional and high-integrity optical systems. See X. Lu et al., pp. 1380–1393.