Coupled cavity-waveguide system based on topological corner state and edge state
Abstract
Topological corner state (TCS) and topological edge state (TES) have provided new approaches to control the propagation of light. The construction of topological coupled cavity-waveguide system (TCCWS) based on TCS and TES is worth looking forward to, due to its research prospects in realizing high-performance micro-nano integrated photonic devices. In this Letter, TCCWS is proposed in two-dimensional (2D) photonic crystal (PC), which possesses strong optical localization, high quality factor and excellent robustness compared with the conventional coupled cavity-waveguide system (CCCWS). This work will provide the possibility to design high-performance logic gates, lasers, filters and other micro-nano integrated photonics devices and expand their applications.
Cite
@article{arxiv.2012.13854,
title = {Coupled cavity-waveguide system based on topological corner state and edge state},
author = {Aoqian Shi and Bei Yan and Rui Ge and Jianlan Xie and Yuchen Peng and Hang Li and Wei E. I. Sha and Jianjun Liu},
journal= {arXiv preprint arXiv:2012.13854},
year = {2021}
}