Realization of topology-controlled photonic cavities in a valley photonic crystal

• Main Authors: Yan, Bei, Liao, Baoliang, Shi, Fulong, Xi, Xiang, Cao, Yuan, Xiang, Kexin, Meng, Yan, Yang, Linyun, Zhu, Zhenxiao, Chen, Jingming, Chen, Xiao-Dong, Liu, Gui-Geng, Zhang, Baile, Gao, Zhen
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2025
• Subjects: Physics; Edge state; Electromagnetics
• Online Access: https://hdl.handle.net/10356/184609
• Institution: Nanyang Technological University

We report the experimental realization of a new type of topology-controlled photonic cavities in valley photonic crystals by adopting judiciously oriented mirrors to localize the valley-polarized edge states along their propagation path. By using microwave frequency- and time-domain measurements, we...