Nature CommunicationsTopological Dirac-vortex modes in a three-dimensional photonic topological insulatorBei YanYingfeng QiZiyao WangYan MengLinyun YangZhen-Xiao ZhuJing Ming ChenYuxin ZhongMin-Qi ChengXiang XiZhen Gao2025-07-01Full textDOI https://doi.org/10.1038/s41467-025-61238-7