Reconfigurable topological waveguide based on honeycomb lattice of dielectric cuboids

We show that the photonic crystal (PhC) made of dielectric cuboids with their centers forming a honeycomb lattice is characterized by a ℤ2${\mathbb{ℤ}}_{2}$ topological index when the longer sides of six cuboids point towards the center of hexagonal unit cell. While the C6v symmetry regar...

Full description

Bibliographic Details
Main Authors: Wang Xing-Xiang, Hu Xiao
Format: Article
Language:English
Published: De Gruyter 2020-06-01
Series:Nanophotonics
Subjects:
Online Access:https://doi.org/10.1515/nanoph-2020-0146