Author(s): Yuanzhen Li, Su Xu, Zijian Zhang, Yumeng Yang, Xinrong Xie, Wenzheng Ye, Feng Liu, Haoran Xue, Liqiao Jing, Zuojia Wang, Qi-Dai Chen, Hong-Bo Sun, Erping Li, Hongsheng Chen, and Fei Gao
Photonic topological states, providing light-manipulation approaches in robust manners, have attracted intense attention. Connecting photonic topological states with far-field degrees of freedom (d.o.f.) has given rise to fruitful phenomena. Recently...