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69 papers · 1 filter
Arbitrary-Order Scattering Exceptional Points in Configurable Non-Hermitian Zero-Index Materials
Yucheng Xu, Ling Yin, Yongxing Wang +1
Scattering exceptional points (EPs) are non-Hermitian degeneracies where the eigenvalues and eigenvectors of scattering matrices coalesce, enabling many intriguing phenomena in opt…
Partial coherence control delivers skyrmionic topological resilience and transitions
Yonglei Liu, Shiqi Chen, Zhenyu Guo +5
Optical skyrmions have recently unlocked topological quasiparticle textures of light, rising in prominence for next-generation ultra-robust information processing. However, to date…
Arbitrary Reflectionless Optical Routing via Non-Hermitian Zero-Index Networks
Yongxing Wang, Zehui Du, Zhenshuo Xu +4
Optical routers are fundamental to photonic systems, but their performance is often limited by unwanted reflections and constrained functionalities. Existing design strategies gene…
Manipulation of photonic topological edge and corner states via trivial claddings
Hai-Xiao Wang, Li Liang, Shuai Shao +4
Crystalline symmetry offers a powerful tool to realize photonic topological phases, in which additional trivial claddings are typically required to confine topological boundary sta…
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…
Million-Q Dual-Polarization Micro-Fabry-Perot Resonators in Silicon Nitride Photonic Integrated Circuits
Ziyang Xiong, Tong Lin, Liu Li +4
Miniaturized Fabry-Perot standing-wave resonators and whispering-gallery travelling wave resonators constitute foundational building blocks for photonic integrated circuits. While…