Observation of an unpaired photonic Dirac point

• Main Authors: Liu, Gui-Geng, Zhou, Peiheng, Yang, Yihao, Xue, Haoran, Ren, Xin, Lin, Xiao, Sun, Hong-xiang, Bi, Lei, Chong, Yidong, Zhang, Baile
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2020
• Subjects: Science::Physics; Optics; Quantum Physics
• Online Access: https://hdl.handle.net/10356/138340; https://doi.org/10.21979/N9/BFQBKH
• Institution: Nanyang Technological University

At photonic Dirac points, electromagnetic waves are governed by the same equations as two-component massless relativistic fermions. However, photonic Dirac points are known to occur in pairs in “photonic graphene” and other similar photonic crystals, which necessitates special precautions to excite...