After six years of the initial idea, our paper on the possible realization of Dirac points in optical-frequency photonic crystals are published on Optics Express!

Optics Express 30, 17203-17220 (2022) 

web link: https://opg.optica.org/oe/fulltext.cfm?uri=oe-30-10-17204&id=472562

Congratulations Hai-Xiao!



We are proud that we have been aware of the key roles of nonsymmorphic symmetries in topological photonics at a very early stage.


Our works on nonsymmorphic topological states started from 2016 and lasted for a long time:

1. Hai-Xiao Wang, Yige Chen, Zhi Hong Hang, Hae-Young Kee, and Jian-Hua Jiang

Type-II Dirac photons

https://www.nature.com/articles/s41535-017-0058-z


2. Zhan Xiong, Hai-Xiao Wang, Hao Ge, Jinjie Shi, Jie Luo, Yun Lai, Ming-Hui Lu and Jian-Hua Jiang

Topological node lines in mechanical metacrystals

https://journals.aps.org/prb/abstract/10.1103/PhysRevB.97.180101


3. Xiujuan Zhang, Zhi-Kang Lin, Hai-Xiao Wang, Zhan Xiong, Yuan Tian, Ming-Hui Lu, Yan-Feng Chen and Jian-Hua Jiang

Symmetry-protected hierarchy of anomalous multipole topological band gaps in nonsymmorphic metacrystals

https://www.nature.com/articles/s41467-019-13861-4


4. Zhi-Kang Lin, Hai-Xiao Wang, Zhan Xiong, Ming-Hui Lu and Jian-Hua Jiang

Anomalous quadrupole topological insulators in two-dimensional nonsymmorphic sonic crystals

https://journals.aps.org/prb/abstract/10.1103/PhysRevB.102.035105


5. Xiaoxi Zhou, Zhi-Kang Lin, Weixin Lu, Yun Lai, Bo Hou, and Jian-Hua Jiang

Twisted quadrupole topological photonic crystals

https://onlinelibrary.wiley.com/doi/abs/10.1002/lpor.202000010


6. Hai-Xiao Wang, Zhi-Kang Lin, Bin Jiang, Guang-Yu Guo, and Jian-Hua Jiang

Higher-order Weyl semimetals

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.125.146401


7. Li Luo, Hai-Xiao Wang, Zhi-Kang Lin, Bin Jiang, Ying Wu, Feng Li, and Jian-Hua Jiang

Observation of a phononic higher-order Weyl semimetal

https://www.nature.com/articles/s41563-021-00985-6