Topological Dirac-vortex modes in a three-dimensional photonic topological insulator

B Bei Yan Y Yingfeng Qi Z Ziyao Wang Y Yan Meng (Marine Science and Technology Domain, Beijing Institute of Technology) L Linyun Yang Z Zhen-Xiao Zhu J Jing-Ming Chen Y Yuxin Zhong M Min-Qi Cheng X Xiang Xi Z Zhen Gao (State Key Laboratory of Optical Fiber and Cable Manufacturing Technology, Department of Electronic and Electrical Engineering, Guangdong Key Laboratory of Integrated Optoelectronics Intellisense, Southern University of Science and Technology)