A5017904464- Advanced Chemical Physics Studies
- Strong Light-Matter Interactions
- Spectroscopy and Quantum Chemical Studies
- Perovskite Materials and Applications
- Plasmonic and Surface Plasmon Research
- Quantum, superfluid, helium dynamics
- 2D Materials and Applications
- Thermal Radiation and Cooling Technologies
- Luminescence and Fluorescent Materials
- Atomic and Subatomic Physics Research
- Catalysis and Oxidation Reactions
- Electronic and Structural Properties of Oxides
- Quantum and electron transport phenomena
- Advanced biosensing and bioanalysis techniques
- Force Microscopy Techniques and Applications
- ZnO doping and properties
- Mechanical and Optical Resonators
- Topological Materials and Phenomena
- Machine Learning in Materials Science
- Nanoplatforms for cancer theranostics
Peking University
2022-2025
Quantum (Australia)
2025
State Key Laboratory of Artificial Microstructure and Mesoscopic Physics
2022-2024
The ability to dynamically manipulate the optoelectronic and magnetic properties in functional materials under nonequilibrium conditions is essential for advancement of quantum technologies energy-related applications. Here, we demonstrate a novel method regulate YCoO3, representative perovskite oxide, using ultrafast vortex laser pulses coupled with nonlinear phonon interactions. Vortex light, characterized by its helical phase front topological charge, allows selective excitation infrared...
Bound state in the continuum (BIC) all-dielectric metasurfaces can strongly enhance light-matter interactions mid-infrared range, owing to their extreme field confinement with low optical losses. The excitation of BIC thus bear potential for vibrational strong coupling (VSC) molecules, which has rarely been studied so far. Here, we combine poly (methyl methacrylate) (PMMA) molecules a simple metasurface, demonstrating VSC between symmetry-protected modes and PMMA molecular vibrations...
Simulation of surface processes is a key part computational chemistry that offers atomic-scale insights into mechanisms heterogeneous catalysis, diffusion dynamics, and quantum tunneling phenomena. The most common theoretical approaches involve optimization reaction pathways, including semiclassical pathways (called instantons). effort can be demanding, especially for instanton optimizations with an ab initio electronic structure. Recently, machine learning has been applied to accelerate...
Abstract The recent observations of exotic quantum phenomena in AV 3 Sb 5 (A = K, Rb, Cs) kagome superconductors have attracted significant attention materials physics. Here, we propose an innovative two-frequencies laser model for ultrafast control transient structural distortions. Using first-principles density functional theory conjunction with the perturbative regime nonlinear phononics, investigate nonharmonic potential energy, crystal lattice dynamics and topological properties CsV ....
Isotope substitution is an important experimental technique that offers deep insight into reaction mechanisms, as the measured kinetic isotope effects (KIEs) can be directly compared with theory. For multiple proton transfer processes, there are two types of mechanisms: stepwise and concerted transfer. The Bell-Limbach model provides a simple theory to determine whether mechanism or from KIEs. Recent scanning tunneling microscopy (STM) experiments have studied switching process in water...
Single-walled carbon nanotubes (SWCNTs), with their high oscillator strength and large exciton binding energies, are becoming highly promising materials for the study of exciton-polaritons in near infrared (NIR) at room temperature. However, current SWCNT-based strong coupling systems generally involve either lossy plasmonic nanostructures or bulk cavity-type resonators poor compactability tunability. Here, an ultracompact low-loss all-dielectric metasurface combined a phase change material...
Intrinsic strong coupling between excitons and anapole mode in self-hybridizing transition metal dichalcogenide (TMD) nanostructures has recently attracted much attention for their capability of improving exciton–anapole interactions as a consequence the nonradiative feature excellent overlap geometry. Here, we propose strategy further enhancing coupling. By embedding Au dimers plasmonic components slotted bulk WS2 nanodisks, plasmon-induced electric field strength enhancement over nearly...
Utilizing ultrafast light-matter interaction to manipulate electronic states of quantum materials is an emerging area research in condensed matter physics. It has significant implications for the development future devices. However, ability induce long-lasting metastable a fully reversible manner long-standing challenge. Here, by using laser excitations, we demonstrate capability polar charge-density-wave material EuTe
FIG. 4. (a) The scattering spectrum and dispersions relationship of the hybrid system.(b) anapole, X, plasmon fractions in UP, MP, LP.(c) system at zero detuning as a function oscillator strength f.(d) Trend Rabi splitting coupled with f enhancement.
Proton transfer (PT) is a process of fundamental importance in hydrogen (H)-bonded systems. At cryogenic or moderate temperatures, pronounced quantum tunneling may happen due to the light mass H. Single PT processes have been extensively studied. However, for involving multiple protons, our understanding remains its infancy stage complicated interplay between high-dimensional nature and tunneling. Cyclic H-bonded systems are typical examples this, where can separately via “stepwise”...