Topology-controlled photonic cavity based on the near-conservation of the valley degree of freedom

• Main Authors: Li, Yandong, Yu, Yang, Liu, Fengyu, Zhang, Baile, Shvets, Gennady
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2021
• Subjects: Science::Physics; Photonic Cavities; Degree of Freedom
• Online Access: https://hdl.handle.net/10356/146166
• Institution: Nanyang Technological University

We demonstrate a novel path to localizing topologically nontrivial photonic edge modes along their propagation direction. Our approach is based on the near-conservation of the photonic valley degree of freedom associated with valley-polarized edge states. When the edge state is reflected from a judi...