collaborators

8 papers

physics.optics2026

Dirac-vortex modes beyond the continuum limit

Jiayu Fan, Jiusi Yu, Aoning Luo +7

Dirac-vortex modes (DVMs) in Kekule-modulated lattices provide a topological route to wave confinement and are commonly described by the continuum Jackiw-Rossi model, in which the…

physics.optics2026

Unveiling spin-orbital angular momentum locking in photonic Dirac vortex cavities

Haitao Li, Jiusi Yu, Jiayu Fan +6

Dirac vortices, originally studied in quantum field theories to predict localized zero-energy modes, were recently realized in photonics, leading to Dirac vortex cavities. With top…

physics.optics2025

Kirigami-based Flexible Metasurface with Reconfigurable Intrinsic Chirality from Zero to Near-unity

Yiyi Yao, Shijie Kang, Aoning Luo +7

Chiral responses in electromagnetic metasurfaces are typically categorized as extrinsic, resulting from asymmetric interactions between the structure and incident waves, and intrin…

physics.optics2025

Hybrid Cavity from Tunable Coupling between Anapole and Fabry-Perot Resonance or Anti-resonance

Aoning Luo, Haitao Li, Ken Qin +8

Enhancing light-matter interactions depends critically on the ability to tailor photonic modes at subwavelength scales, and combining distinct resonant modes has shown remarkable p…

physics.optics2025

Giant and Rapidly Switching Intrinsic Chirality Enabled by Toroidal Quasi-Bound States in the Continuum

Shijie Kang, Jiusi Yu, Boyuan Ge +8

Circular dichroism (CD), arising from spin-selective light-matter interactions controlled by chirality, is critical for advanced applications such as chiral imaging and ultrasensit…

physics.optics2025

Direct Observation of Strongly Tilted Dirac Points at General Positions in the Reciprocal Space

Yangsong Ye, Shijie Kang, Jiusi Yu +7

Type-II Dirac points (DPs), which occur at the intersection of strongly tilted and touching energy bands, exhibit many intriguing physical phenomena fundamentally different from th…