Realization of a three-dimensional photonic topological insulator

• Main Authors: Yang, Yihao, Gao, Zhen, Xue, Haoran, Zhang, Li, He, Mengjia, Yang, Zhaoju, Singh, Ranjan, Chong, Yidong, Zhang, Baile, Chen, Hongsheng
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2020
• Subjects: Science::Physics::Optics and light; Metamaterials; Topological Insulators
• Online Access: https://hdl.handle.net/10356/138225
• Institution: Nanyang Technological University

Confining photons in a finite volume is highly desirable in modern photonic devices, such as waveguides, lasers and cavities. Decades ago, this motivated the study and application of photonic crystals, which have a photonic bandgap that forbids light propagation in all directions1,2,3. Recently, ins...