Single-mode lasing based on PT -breaking of two-dimensional photonic higher-order topological insulator

  title={Single-mode lasing based on 
-breaking of two-dimensional photonic higher-order topological insulator},
  author={Bofeng Zhu and Q. J. Wang and Y. Q. Zeng and Q. J. Wang and Yidong Chong},
  journal={Physical Review B},
Bofeng Zhu, 2 Qiang Wang, Yongquan Zeng, Qi Jie Wang, 2, 4, ∗ and Y. D. Chong 4, † Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 637371, Singapore Electronic Information School, Wuhan University, Wuhan 430072, China. Centre for Disruptive Photonic Technologies, Nanyang Technological University… 

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