Paper 14092-95
Paper 14092-95
Nonlinearity-enabled optical vortices with dual-topological protection
14 April 2026 • 18:10 - 20:00 CEST | Galerie Erasme (Niveau/Level 0)
Abstract
We demonstrate nonlinearity-induced orbital coupling and superposition that enable vortex OAM generation and robust transport through a Kagome-based disclination, thanks to the nonlinear bandgap and dual-topological protection inherent to the lattice structure.
Presenter
Zhichan Hu
Nankai Univ. (China)
Zhichan Hu is a Postdoctoral Researcher and Assistant Research Fellow at the School of Physics, Nankai University, China, under the joint supervision of Prof. Zhigang Chen and Prof. Daohong Song. Her research mainly focuses on optics and topological photonic device engineering. She developed a chiral-symmetry-enriched higher-order topological framework to enable robust vortex-beam transport through disclination structures, supported by symmetry-protected zero-energy defect modes.