[1] P Chen, B Wei, W Hu, et al. Liquid-crystal-mediated geometric phase: From transmissive to broadband reflective planar optics. Advanced Materials, 32, 1903665(2020).
[2] A Dorrah, F Capasso. Tunable structured light with flat optics. Science, 376, 6860(2022).
[5] C Li, S Liu, Yu, B, et al. Toward arbitrary spin-orbit flat optics via structured geometric phase gratings. Laser & Photonics Reviews, 17, 2200800(2023).
[6] C Li, S Liu, Yu, B, et al. Toward arbitrary spin-orbit flat optics via structured geometric phase gratings. Laser & Photonics Reviews, 17, 2370021(2023).