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physics.optics2026
Emerging Multidimensional Real-Space Topological Structures at Chiral Bound States in the Continuum
Xingqi Zhao, Jingguang Chen, Jiajun Wang +6
As widely studied topological singularities, bound states in the continuum (BICs) have revealed rich physical properties through their momentum-space topology. Here, we reveal and…
physics.optics2025
Meron Spin Textures in Momentum Space Spawning from Bound States in the Continuum
Lixi Rao, Jiajun Wang, Xinhao Wang +7
Topological spin textures, such as merons and skyrmions, have shown significance in both fundamental science and practical applications across diverse physical systems. The optical…
physics.optics2024
Topological Singularities in Metasurface Scattering Matrices: From Nodal Lines to Exceptional Lines
Jingguang Chen, Wenzhe Liu, Jiajun Wang +6
Topological properties of photonic structures described by Hamiltonian matrices have been extensively studied in recent years. Photonic systems are often open systems, and their co…