3 papers
physics.optics2026
σh-Broken Induced Topological quasi-BIC
Yongqi Chen, Chaofeng Xie, Tongtong Zhu +2
Transitions from bound states in the continuum (BICs) to quasi-BICs (qBICs) are typically realized by introducing in-plane asymmetry, including permittivity asymmetry (ε-qBICs) and…
physics.optics2024
Vertical Emission of Blue Light from a Symmetry Breaking Plasmonic Nanocavity-Emitter System Supporting Bound States in the Continuum
Yongqi Chen, Jiayi Liu, Jiang Hu +10
The concept of photonic bound states in the continuum (BICs), introduced in structured metallic surface cavities, provides a crucial mechanism for designing plasmonic open-resonant…
physics.optics2023
Chiral topological whispering gallery modes formed by gyromagnetic photonic crystals
Yongqi Chen, Nan Gao, Guodong Zhu +1
We explore a hexagonal cavity that supports chiral topological whispering gallery (CTWG) modes, formed by a gyromagnetic photonic crystal. This mode is a special type of topologica…