A5108328053- Topological Materials and Phenomena
- Photonic Crystals and Applications
- Metamaterials and Metasurfaces Applications
- Quantum chaos and dynamical systems
- Photonic and Optical Devices
- Neural Networks and Applications
- Combustion and Detonation Processes
- Aerosol Filtration and Electrostatic Precipitation
Zhejiang University
2024-2025
Shaoxing University
2024
Jinhua Academy of Agricultural Sciences
2024
Zhejiang University of Technology
2024
In topological physics, it is commonly understood that the existence of boundary states a system inherently dictated by its bulk. A classic example surface Fermi-arc Weyl are determined chiral charges points within Contrasting with this established perspective, here, we theoretically and experimentally discover family bulk extending over photonic metamaterial waveguides, solely induced waveguide boundaries, independently width. Notably, these showcase discrete momenta function as tunnels...
Antiferromagnetism, characterized by alternating magnetic moments, has garnered renewed interest for its potential applications in spintronics and axion electrodynamics. Its synergy with topology may yield an exotic topological phase unique to a certain order, termed antiferromagnetic insulators (AF TIs). A hallmark signature of AF TIs is the presence single surface Dirac cone—a feature typically associated strong three-dimensional (3D) but lacking direct observation. Here, we theoretically...
Going beyond the conventional theory, non-Abelian band topology reveals global quantum geometry of multiple Bloch bands and unveils a new paradigm for topological physics. However, to date, experimental studies on states one dimension are still restricted systems with time-reversal ( $${{\mathcal{T}}}$$ ) symmetry. Here, exploiting designer gyromagnetic photonic crystal, we find rich -broken phases their transitions an unexpected connection multigap antichiral edge states. By in-situ tuning...
Going beyond the conventional theory, non-Abelian band topology uncovers global quantum geometry of Bloch bands with multiple gaps and thus unveil a new paradigm for topological physics. However, to date, all materials are restricted systems time-reversal symmetry (T). Here, starting from Kagome lattice inspired by Haldane model designer gyromagnetic photonic crystals (PhCs), we show that T breaking can lead rich physics, particularly emergence multigap antichiral edge states. Simply...
Abstract Topological photonics offers a powerful platform for next-generation nanophotonic chips, capitalizing on their remarkable resilience to disorder and defects. Among the two-dimensional (2D) photonic topological insulators, valley-Hall (VH) pseudo-spin-Hall (PSH) insulators have emerged as most practical designs, they do not require breaking time-reversal symmetry. These support robust edge states, demonstrating promising potential wide range of applications, from on-chip...
The mathematical theory of braids, influential across scientific disciplines, has emerged as a compelling strategy for light manipulation. Existing approaches to creating braids in photonics, whether momentum-space bandstructures or real-space fields, often face limitations associated with static nature devices and lack tunability. Here, we experimentally demonstrate ultrafast control eigen-spectrum Jones matrices within mere picoseconds, reconfigurable non-Hermitian metasurfaces. the...