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20172024
most citedGenerating optical vortex beams by momentum-space polarization vortices centered at bound states in the continuum

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physics.optics2024★ 6 cited

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…