@inproceedings{53f414621fb94304b3e907348dfea85e,
title = "Tunable Topological Photonic Crystal Waveguides",
abstract = "Edge states in topological photonic systems have the robust unidirectional propagation feature which originates from the topological nature of the bulk band dispersion. In this work, we propose a topological photonic crystal (PC) waveguide that is formed by introducing an air gap in an all-dielectric PC with C-\{6v\} symmetry. The dispersion of the line defect states is tunable by varying the width of the air gap. Based on their field distributions, the states can be classified into even- and odd-symmetric states. The even-symmetric states are found to be the nontrivial topological edge states and exhibit pseudospin-locking unidirectional propagation property. By introducing disorders to the waveguide, these states are proven to be robust with well suppressed backscattering.",
keywords = "robust wave-guiding, topological photonics, tunable edge states",
author = "Chen, \{Menglin L.N.\} and Jiang, \{Li Jun\} and Sha, \{Wei E.I.\}",
note = "Funding Information: ACKNOWLEDGMENT This work was supported in part by the Research Grants Council of Hong Kong GRF 17209918, AOARD FA2386-17-1-0010, NSFC 61271158, NSFC 61975177, HKU Seed Fund 201711159228, and Thousand Talents Program for Distinguished Young Scholars of China. Publisher Copyright: {\textcopyright} 2021 Applied Computational Electromagnetics Society (ACES).; 4th International Applied Computational Electromagnetics Society Symposium in China, ACES-China 2021 ; Conference date: 28-07-2021 Through 31-07-2021",
year = "2021",
month = jul,
day = "28",
doi = "10.23919/ACES-China52398.2021.9581786",
language = "English",
series = "2021 International Applied Computational Electromagnetics Society Symposium, ACES-China 2021, Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1--2",
booktitle = "2021 International Applied Computational Electromagnetics Society Symposium, ACES-China 2021, Proceedings",
}