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arXiv · 2012.13854

Coupled cavity-waveguide system based on topological corner state and edge state

Aoqian Shi·Bei Yan·Rui Ge·Jianlan Xie·Yuchen Peng·Hang Li·Wei E. I. Sha·Jianjun Liu
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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.

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Aoqian Shi, Bei Yan, Rui Ge, Jianlan Xie, Yuchen Peng, Hang Li, Wei E. I. Sha, Jianjun Liu. 2020-12-27. Coupled cavity-waveguide system based on topological corner state and edge state. https://doi.org/10.1364/ol.418570

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