Yuanhao Lang, Quan Xu, Fan Huang, Xinyao Yuan, Xiaohan Jiang, Xueqian Zhang, Jianqiang Gu, Luping Du, Xiaocong Yuan, Changxu Liu, Jiaguang Han, Weili Zhang. "Experimental Observation of Topological Transition in Optical Multimeron." Advanced Materials (2026). https://doi.org/10.1002/adma.202507528