A5020965606- Topological Materials and Phenomena
- Photonic Crystals and Applications
- Perovskite Materials and Applications
- Photonic and Optical Devices
- Metamaterials and Metasurfaces Applications
- Plasmonic and Surface Plasmon Research
- Organic Light-Emitting Diodes Research
- Conducting polymers and applications
- Acoustic Wave Phenomena Research
- Quantum Mechanics and Non-Hermitian Physics
- Quantum Dots Synthesis And Properties
- Optical Coatings and Gratings
- Mechanical and Optical Resonators
- Advanced Fiber Laser Technologies
- Optical Network Technologies
- Advanced Photonic Communication Systems
- Gold and Silver Nanoparticles Synthesis and Applications
- ZnO doping and properties
- Quantum many-body systems
- Chalcogenide Semiconductor Thin Films
- Molecular Junctions and Nanostructures
- Advanced Antenna and Metasurface Technologies
- 2D Materials and Applications
- Advanced Optical Network Technologies
- Gas Sensing Nanomaterials and Sensors
Dongguan University of Technology
2024-2025
Hubei University of Chinese Medicine
2025
Shanghai Eighth People Hospital
2023-2024
Southern University of Science and Technology
2022-2024
Jiangsu University
2024
Children's Hospital of Chongqing Medical University
2023
Chongqing Medical University
2023
Shandong Normal University
2021-2022
Nanjing University
2020-2022
Hong Kong University of Science and Technology
2016-2022
The extensive research of two-dimensional layered materials has revealed that valleys, as energy extrema in momentum space, could offer a new degree freedom for carrying information. Based on this concept, researchers have predicted valley-Hall topological insulators which support valley-polarized edge states at non-trivial domain walls. Recently, several kinds photonic or sonic crystals been proposed classical counterparts insulators. However, direct experimental observation is still...
Axions, hypothetical elementary particles that remain undetectable in nature, can arise as quasiparticles three-dimensional crystals known axion insulators. Previous implementations of insulators have largely been limited to two-dimensional systems, leaving their topological properties three dimensions unexplored experiment. Here, we realize an insulator a photonic crystal and probe its properties. Demonstrated features include half-quantized Chern numbers on each surface resembles...
We demonstrate a high-efficiency tunable acoustic absorber for low frequencies (<500 Hz) with subwavelength thickness. The is based on split tube resonators and could reach absorption at resonance frequency wavelength in air least 30 times larger than its total thickness simulations experiments. of the are robust under oblique incidence even large angles. have potential applications engineering due to high structural stability, ease fabrication, thickness, high-efficiency.
We demonstrate a bi-layer ultrathin anisotropic metasurface which could near-completely convert the circular-polarized electromagnetic wave to its cross polarization. The is composed of periodic 180°-twisted double-cut split ring resonators on both sides an F4B substrate. At resonance, cross-polarized transmission larger than 94% observed in simulations and experiments. resonant frequency be effectively tuned by adjusting geometric parameters metasurface, while relatively high conversion...
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...
Topological photonics is a rapidly developing field that leverages geometric and topological concepts to engineer control the characteristics of light. Currently, research on has expanded from traditional one-dimensional (1D) two-dimensional (2D) three-dimensional (3D) higher-dimensional spaces. However, most reviews focus 1D 2D systems, review provides detailed classification introduction 3D systems still missing. Here, we photonic states in different platforms. Moreover, discuss internal...
Recently, higher-order topologies have been experimentally realized, featuring topological corner modes (TCMs) between adjacent topologically distinct domains. However, they to comply with specific spatial symmetries of underlying lattices, hence their TCMs only emerge in very limited geometries, which significantly impedes generic applications. Here, we report a general scheme inducing arbitrary geometry based on Dirac vortices from aperiodic Kekul\'e modulations. The can now be constructed...
Dirac cones (DCs) play a pivotal role in various unique phenomena ranging from massless electrons graphene to robust surface states topological insulators (TIs). Recent studies have theoretically revealed full hierarchy comprising an eightfold bulk DC, fourfold and twofold hinge associated with of phases including first-order third-order three-dimensional (3D) insulators, using the same 3D base lattice. Here, we report first experimental observation acoustic TIs. Using measurements,...
The electromagnetic fields distributed on the surface region of nanostructure is very important to improve performance sensor. Here, we proposed a highly sensitive sensor based toroidal dipole (TD) governed by bound state in continuum (BIC) all-dielectric metasurface consisting single non-coaxial core-shell cylinder array. excitation TD resonance still challenging. designed not only supports but also has high Q-factor. More importantly, its electric field distributes at outer cylinder-shell,...
Abstract We investigate the correlation between chemical composition and vortex dynamics in Ni-doped RbCa2(Fe1−xNix)4As4F2 (x = 0, 0.03, 0.05, 0.07) single crystals using electrical transport magnetization measurements. In mixed state, slush phase, typically observed a system with moderate disorder, gradually disappears as Ni doping concentration increases. The activation energy U0, derived from Arrhenius plots of resistivity, exhibits an H^−α dependence decreases progressively. Magnetic...
Intrahepatic cholangiocarcinoma (ICC) is a rare malignant tumor with limited treatment options. Celastrol (Cela) shows potential for ICC, but its clinical use hindered by poor water solubility and toxic side effects. To address these challenges enhance anti-tumor efficacy, we developed hyaluronic acid (HA)-coated triphenylphosphine complex-modified liposomes (HCTL) accurate delivery of Cela to cell mitochondria.HCTL enhances Cela's demonstrates high rate encapsulation, stability, sustained...
Abstract Higher‐order Weyl semimetal (HOWSM) with coexisting 2D topological surface states and 1D hinge establishes the fundamental connection between physics higher‐order topology. However, existing experimental demonstrations of HOWSM have primarily focused on nodes chiral charges ±1. In this work, based space group symmetry, a photonic double‐Weyl (HODWSM) larger is theoretically designed experimentally realized in 3D metamaterial. It demonstrated that HODWSM exhibits single pair...
The topological invariants of a periodic system can be used to define the phase each band and determine existence interface states within certain bandgap. Here, we propose scheme based on full diagrams, design any specified bandgaps. As an example, here kind one-dimensional phononic crystals. By connecting two semi-infinite structures with different phases, specific bandgap or their combinations achieved in rational manner. single bandgap, all odd bandgaps, even are verified simulations...
Abstract Purpose Diabetes mellitus (DM) is the second most common comorbidity in myelodysplastic syndromes (MDS). The purpose of study was to investigate clinical characteristics MDS patients with DM. Methods A retrospective analysis performed on data 890 or without Clinical data, including genetic changes, overall survival (OS), leukemia-free (LFS) and infection, were analyzed. Results Among patients, 184 (20.7%) had TET2 SF3B1 mutations occurred more frequently DM group than those non-DM (...
High- Q factor can enhance the interaction between light and matter, which is an important parameter to decrease threshold of nanolasers. Here, we theoretically propose eccentric nanoring structure with a high controllable realize low-threshold nanolaser by amplifying quasi-bound states in continuum (quasi-BIC). The designed nanostructure supports quasi-BIC because symmetry protection-breaking nanostructure. has very about 9.6×10 4 also be adjusted changing structural parameters. We use...
Compared to organic-inorganic hybrid metal halide perovskites, all-inorganic cesium lead halides (e.g, CsPbBr3) hold greater promise in being emissive materials for light-emitting diodes owing their superior optoelectronic properties as well higher stabilities. However, there is still considerable potential breakthroughs the current efficiency of CsPbBr3 perovskite (PeLEDs). Electrode quenching one main problems limiting PeLEDs when poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate)...
One new lead chlorine cluster assembled 1D non-perovskite halide of [DTHPE]<sub>2</sub>Pb<sub>3</sub>Cl<sub>10</sub> was synthesized which displays strong broadband bluish white light emission with a high photoluminescence quantum efficiency 19.45% exceeding those previously reported 2D perovskites.
Organic–inorganic hybrid perovskites have attracted great attention in the field of lighting and display due to their very high color purity low-cost solution-process. Researchers done a lot work realizing performance electroluminescent devices. However, current efficiency (CE) methyl-ammonium lead halide perovskite light-emitting diodes (PeLEDs) still needs be improved. Herein, we demonstrate enhanced PeLEDs through introducing an ultrathin poly(9,9-di-n-octylfluorenyl-2,7-diyl) (PFO)...
If a full bandgap closes and then reopens when we continuously deform periodic system while keeping its symmetry, topological phase transition usually occurs. A common model demonstrating such in condensed matter physics is the Su-Schrieffer-Heeger (SSH) model. As well known, two distinct phases emerge intracell hopping tuned from smaller to larger with respect intercell The former case topologically trivial, latter non-trivial. Here, design 1D acoustic exact analogy SSH unit cell of...
The spoof-insulator-spoof (SIS) structure can serve as a waveguide for spoof surface plasmon polaritons (spoof SPPs). If periodic geometry modulation in the wavelength scale is introduced to SIS waveguide, this multiscale (MSIS) possesses band gaps SPPs analogous photonic crystal. Inspired by topological interface states found crystals, we construct an connecting two MSIS waveguides with different properties (inverted Zak phases of bulk bands). are observed experimentally. measured decay...