Topological-Invariant-Optics

Topological Invariant Calculation for Photonic Crystals Including Chern Number and Wilson Loop

Publication

1. Ran Zhao, Guoda Xie, Menglin L. N. Chen, Zhihao Lan, Zhixiang Huang, and Wei E. I. Sha, “First-Principle Calculation of Chern Number in Gyrotropic Photonic Crystals,” Optics Express, vol. 28 , no. 4, pp. 4638-4649, Feb. 2020.

2. Menglin L.N. Chen, Li Jun Jiang, Shuang Zhang, Ran Zhao, Zhihao Lan, and Wei E.I. Sha, “Comparative Study of Hermitian and Non-Hermitian Topological Dielectric Photonic Crystals,” Physical Review A, vol. 104, pp. 033501, Sep. 2021.

MATLAB Files

FD_PCs_ChernNumber_Ex2/3.m: Chern number calculation in Gyrotropic photonic crystals with generalized finite-difference method

FD_PCs_Wilson_loop.m: Wilson loop calculation in Hermitian and non-Hermitian dielectric photonic crystals with generalized finite-difference method

Collaborators

Dr. Menglin CHEN at Hong Kong Polytechnic University

Dr. Ran Zhao at University of Electronic Science and Technology of China