Jian‐Wen Dong

Dirac‐Point‐Assisted Topological Charge Exchange in Dual‐Wavelength BIC Vortex Microlasers

ABSTRACT On‐chip lasers that emit wavelength‐multiplexed structured light are important in integrated photonics. Bound states in the continuum (BICs) provide high‐quality resonances with radiation topology, enabling vortex lasing at multiple wavelengths. However, the topological...

Kirigami-actuated reconfigurable topological photonic crystals

Photonic crystals are typically fabricated with a fixed topology, freezing their edge and corner states in space and frequency. Here we introduce a kirigami-actuated reconfigurable topological photonic crystal in which a single in-plane rotation reshapes the unit cell, drives a b...