A5045471891- Advanced Fiber Laser Technologies
- Photonic Crystal and Fiber Optics
- Solid State Laser Technologies
- Laser-Matter Interactions and Applications
- Advanced Fiber Optic Sensors
- Advanced MIMO Systems Optimization
- Advanced Wireless Network Optimization
- Adhesion, Friction, and Surface Interactions
- Tribology and Lubrication Engineering
- Photonic and Optical Devices
- Wireless Networks and Protocols
- Advanced Memory and Neural Computing
- Cooperative Communication and Network Coding
- Semiconductor materials and devices
- Advanced Wireless Communication Techniques
- Aluminum Alloy Microstructure Properties
- Surface Modification and Superhydrophobicity
- Antenna Design and Optimization
- Laser Design and Applications
- Perovskite Materials and Applications
- Optical Systems and Laser Technology
- Metal Forming Simulation Techniques
- Organic Electronics and Photovoltaics
- Mobile Ad Hoc Networks
- Nonlinear Photonic Systems
Chinese University of Hong Kong
2014-2025
Shanghai University of Traditional Chinese Medicine
2025
Technical University of Denmark
2022-2025
Chinese Academy of Sciences
2007-2025
Institute of Semiconductors
2017-2025
University of Chinese Academy of Sciences
2014-2025
Lanzhou Institute of Chemical Physics
2021-2025
Northwestern Polytechnical University
2023-2025
State Key Laboratory of Solid Lubrication
2025
Xi'an Shiyou University
2024
Abstract Hydrogels, exhibiting wide application prospects in soft robotics, tissue engineering, implantable electronics, etc., upon functioning often require to adhere substrates especially wet environments despite that most hydrogels are nonsticky because of their high water content and hydrophilicity. Herein, a strategy rapidly reverse the adhesion properties via surface anchoring very thin adhesive coatings is reported. Inspired by mussel adhesion, poly(vinyl alcohol) hydrogel first...
Various striking nonlinear evolution dynamics have been observed in mode-locked fiber lasers owing to the high peak power of solitons. Herein, we numerically demonstrate dynamical generation dispersion-dependent pure-quartic solitons (PQS) molecules a laser. We discover from single-pulse initial condition different types pulsating PQS with enhanced net fourth-order dispersion, indicating that internal motion and energy exchange can be both quasi-periodical periodical. Furthermore, reveal...
We have synthesized highly monodisperse PbS/CdS quantum dots with bright infrared emissions via a low-temperature shell growth approach. Stable Q-switched and mode-locked ultrashort pulses are generated based on saturable absorbers.
Pure-quartic solitons (PQSs) balanced by the fourth-order dispersion (FOD) and nonlinearity in weakly birefringent optical fibers exhibit unique characteristics that differ from those of traditional solitons. Owing to long oscillating tail PQS, soliton trapping can be easily promoted either between sub pulses inside molecule or along two polarization axes fiber. Thus, observing interaction motion dynamics vector PQS molecules promotes great opportunities for unveiling new mechanisms...
We consider a multi-link MIMO interference system in which each link wishes to maximize its own mutual information by choosing signal vector, leads multi-player game. show the existence of Nash equilibrium and obtain sufficient conditions for uniqueness equilibrium. two decentralized adjustment algorithms called best-response process (a.k.a. iterative water- filling) gradient-play (an autonomous non-cooperative version well-known gradient ascent algorithm). Under our conditions, we establish...
We report on the experimental implementation of single-frequency fiber-laser pumped mid-infrared (mid-IR) transmitter and receiver modules for free-space communications. These enable frequency upconversion downconversion between 1550-nm telecom wavelength mid-IR, thus providing essential transmission links with mid-IR lasers in 3.6 μm region. Specifically, based difference generation (DFG) MgO-doped periodically poled LiNbO3 (MgO:PPLN), produces 9.3-mW power at 3594 nm 5-W pump 1083 (<10 kHz...
The incorporation of a material-based or artificial saturable absorber into fiber laser cavity imposes limitation on energy enhancement owing to its low damage threshold and high environmental sensitivity. To address this issue, one promising alternative approach is the utilization self-mode-locking technique. Here, we present robust self-mode-locked Tm-doped with pulse emission. A simple compact structure realized by utilizing section fiber, serving both as gain medium absorber. Thus,...
High-order dispersion can be utilized to enhance pulse energy emission from a fiber laser cavity, such as in the generation of pure-quartic solitons (PQSs) balanced by fourth-order (FOD) and Kerr nonlinearity. However, nonlinearity accumulation cavity easily induce splitting, limiting increase further. In this paper, we propose theoretical model investigate evolution dissipative (DPQSs) an all-normal Mamyshev oscillator. We reveal that significant interaction positive FOD with nonlinearity,...
Introduction Population aging is an inevitable consequence of demographic transition and important issue for human society in the 21st century. Physical activity widely recognized as a critical factor improving health, yet specific impact different intensities physical on health older adults remains underexplored. Methods This study addresses this gap by analyzing data from China Health Retirement Longitudinal Survey (CHARLS), nationally representative survey cohort Chinese people (aged ≥45...
Abstract In this paper, a regular octagonal photonic crystal fiber (ROPCF) is proposed to support and improve the stable transmission of orbital angular momentum (OAM) modes. The ROPCF composed doped high refractive index ring four layers air hole rings, ensuring that effective difference between OAM modes same order or mode group greater than 10 -4 , can stably transmit 114 in wavelength range 1.5~1.6μm. A finite element method (FEM) used analyze designed ROPCF. measured results show has...
Attaining sustainability and carbon neutrality necessitates a transition towards cleaner biorefinery, while the exploitation of sustainable eco-friendly pretreatment techniques, as pivotal stage in lignocellulose represents challenge. Here, an ultrafast biomass strategy enabled by microwave (MW) responsive deep eutectic solvent (DES) is proposed. The properties (Kamlet-Taft parameters) DES under MW participation are closely correlated with wheat straw fractionation efficiency. lignin removal...
Abstract The Mamyshev oscillator is an elegant and versatile method for generating ultrashort high‐energy laser pulses. It realized in all‐fiber structure, which provides robustness good beam quality, ensuring reliable efficient performance. An 2 µm presented based on two Tm‐doped fiber amplifiers separated by a broadband fixed wavelength filter with 11.2 nm −3 dB bandwidth tunable narrow 1.1 bandwidth. Three distinct emission regimes are identified mapped out terms of the pump power...
We present an electrical-bistability device based on MIM-sandwiched structure. Poly(N-vinylcarbazole) (PVK) mixed with gold nanoparticles (GNPs) serve as the active layer between two metal electrodes. After applying a voltage, as-fabricated can transit from low conductivity state to high state. By simply using reverse bias, return An on/off current ratio 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">5 </sup> at room temperature has been...
We demonstrated an all-fiber Er-doped Mamyshev oscillator with short pulse duration and high peak power. Through the dispersion management technique accumulation of sufficient nonlinear phase shift, stable pulses repetition rate 6.55 MHz, 20-dB spectral bandwidth 78.2 nm, 72 fs power 86 kW were achieved from output coupler (OC) device directly without extra compression. Simulations have been performed to show direct generation ultrafast laser based on extended Schrödinger equation. To best...