Topological insulator properties of photonic kagome helical waveguide arrays

0Citations
Citations of this article
6Readers
Mendeley users who have this article in their library.

Abstract

We investigate topological insulator properties of the kagome helical waveguide array, by utilizing theoretical and numerical means. The time-reversal symmetry of the kagome lattice is broken by helicity, and a photonic topological insulator is formed. The Berry curvature and Chern number of the band structure are calculated, to verify the topological phase transition, caused by the helicity. Unidirectional propagation and topological protection properties of the edge states at certain momentum values are demonstrated. Interestingly, the same kagome helical waveguide array, may support topological edge states with different momenta propagating along the same boundary but in opposite directions.

Cite

CITATION STYLE

APA

Zhong, H., Wang, R., Ye, F., Zhang, J., Zhang, L., Zhang, Y., … Zhang, Y. (2019). Topological insulator properties of photonic kagome helical waveguide arrays. Results in Physics, 12, 996–1001. https://doi.org/10.1016/j.rinp.2018.12.053

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free