Visible-frequency dielectric metasurfaces for multiwavelength achromatic and highly dispersive holograms - Bo Wang; Dong, Fengliang; Li, Qi-Tong; Yang, Dong; Sun, Chengwei; Chen, Jianjun; Song, Zhiwei; Xu, Lihua; Chu, Weiguo; Xiao, Yun-Feng; others (Nano Letters, 2016)