Observation of protected photonic edge states induced by real-space topological lattice defects

• Main Authors: Wang, Qiang, Xue, Haoran, Zhang, Baile, Chong, Yidong
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2020
• Subjects: Physics - Mesoscopic Systems and Quantum Hall Effect; Physics - Optics; Science::Physics; Topological Defects; Valley Photonic Crystals
• Online Access: https://hdl.handle.net/10356/145068
• Institution: Nanyang Technological University

Topological defects (TDs) in crystal lattices are elementary lattice imperfections that cannot be removed by local perturbations, due to their real-space topology. In the emerging field of topological photonics, photonic topological edge states arise from the nontrivial topology of the band structur...