A5060938551- Topological Materials and Phenomena
- Photonic Crystals and Applications
- Photonic and Optical Devices
- Quantum Mechanics and Non-Hermitian Physics
- Algebraic structures and combinatorial models
- Mechanical and Optical Resonators
- Black Holes and Theoretical Physics
- Photorefractive and Nonlinear Optics
- Advanced Measurement and Metrology Techniques
- Cosmology and Gravitation Theories
- Quantum many-body systems
- Advanced Frequency and Time Standards
- Topological and Geometric Data Analysis
- Optical Systems and Laser Technology
- Quantum Electrodynamics and Casimir Effect
- Random lasers and scattering media
- Advanced Condensed Matter Physics
- Ocular and Laser Science Research
Southern University of Science and Technology
2023-2025
Peking University
2024
Wuhan University of Science and Technology
2024
Chinese University of Hong Kong, Shenzhen
2024
Dongguan University of Technology
2024
Zhejiang University
2024
Nanyang Technological University
2024
Collaborative Innovation Center of Advanced Microstructures
2020
Nanjing University
2020
Chiral edge states that propagate oppositely at two parallel strip edges are a hallmark feature of Chern insulators which were first proposed in the celebrated two-dimensional (2D) Haldane model. Subsequently, counterintuitive antichiral same direction discovered 2D modified Recently, chiral surface states, extension one-dimensional (1D) have also been observed photonic analogue 3D However, despite many recent advances and 1D never realized any physical system. Here, we report experimental...
For the classification of topological phases matter, an important consideration is whether a system spinless or spinful, as these two classes have distinct symmetry algebra that gives rise to fundamentally different phases. However, only recently has it been realized theoretically in presence gauge symmetry, algebraic structure symmetries can be projectively represented, which possibly enables switch between and spinful Here, we report experimental demonstration this idea by realizing...
We report the experimental realization of a new type topology-controlled photonic cavities in valley crystals by adopting judiciously oriented mirrors to localize valley-polarized edge states along their propagation path. By using microwave frequency- and time-domain measurements, we directly observe strong confinement electromagnetic energy at mirror surface due extended time delay required for index flipping. Moreover, experimentally demonstrate that both degree localization quality...
Recently, topological Dirac-vortex modes in Kekul\'e-distorted photonic lattices have attracted broad interest and exhibited promising applications robust devices such as cavities, lasers, fibers. However, due to the vectorial nature of electromagnetic waves that results complicated band dispersions fails tight-binding model predictions, it is challenging construct three-dimensional (3D) structures with Kekul\'e distortion thus far been limited two-dimensional (2D) systems. Here, by directly...
<title>Abstract</title> <bold>Recently, topological Dirac-vortex modes in Kekulé-distorted photonic lattices have attracted broad interest and exhibited promising applications robust devices such as cavities, lasers, fibers. However, due to the vectorial nature of electromagnetic waves that results complicated band dispersions fails tight-binding model predictions, it is challenging construct three-dimensional (3D) structures with Kekulé distortion thus far been limited two-dimensional (2D)...
The discovery of photonic higher-order topological insulators (HOTIs) has significantly expanded our understanding band topology and provided unprecedented lower-dimensional boundary states for robust devices. However, due to the vectorial leaky nature electromagnetic waves, it is challenging discover three-dimensional (3D) systems HOTIs have so far still been limited two dimensions (2D). Here, we report on first experimental realization a 3D Wannier-type HOTI in tight-binding-like...
<title>Abstract</title> The discovery of photonic higher-order topological insulators (HOTIs) has significantly expanded our understanding band topology and provided unprecedented lower-dimensional boundary states for robust devices. However, due to the vectorial leaky nature electromagnetic waves, it is challenging discover three-dimensional (3D) systems realization HOTIs so far still been limited two dimensions (2D). Here, we report on first experimental a 3D Wannier-type HOTI in...
We report an experimental realization of a new type topology-controlled photonic cavities in valley crystals by adopting judiciously oriented mirrors to localize the valley-polarized edge states along their propagation path. By using microwave frequency- and time-domain measurements, we directly observe strong confinement electromagnetic energy at mirror surface due extended time delay required for index flipping. Moreover, experimentally demonstrate that both degree localization quality...
We present an optical method to realize the analogy of gravitational collapse by using gradient refractive index system and spacetime embedding diagram. observe Hawking radiation after horizon is formed, for which corresponding effective temperature obtained via transmission spectrum. find that proportional surface gravity, similar case in real black holes.