A5100352244- Laser Material Processing Techniques
- Laser-induced spectroscopy and plasma
- Laser-Matter Interactions and Applications
- Glass properties and applications
- Solid State Laser Technologies
- Oral and gingival health research
- Radiative Heat Transfer Studies
- Advanced Surface Polishing Techniques
- Laser-Plasma Interactions and Diagnostics
- Advanced materials and composites
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Photonic and Optical Devices
- Laser-Ablation Synthesis of Nanoparticles
- Cultural Heritage Materials Analysis
- Salivary Gland Disorders and Functions
- Soil, Finite Element Methods
- Additive Manufacturing and 3D Printing Technologies
- Adsorption and Cooling Systems
- Photonic Crystals and Applications
- Ocular and Laser Science Research
- Geoscience and Mining Technology
- Integrated Energy Systems Optimization
- Oral microbiology and periodontitis research
- Geomechanics and Mining Engineering
- Diamond and Carbon-based Materials Research
China Railway Construction Corporation (China)
2024
University of Chinese Academy of Sciences
2015-2024
Institute of Rock and Soil Mechanics
2024
Xi'an Institute of Optics and Precision Mechanics
2015-2023
Shanxi University
2023
Nankai University
2021-2023
Laboratoire de Physique des Plasmas
2022
Aix-Marseille Université
2022
Lasers, Plasmas et Procédés Photoniques
2022
Centre National de la Recherche Scientifique
2022
With the rapid development of intermittent renewable energy, large-scale compressed air energy storage technology represented by Adiabatic Compressed Air Energy Storage (A-CAES) has attracted much attention. In order to simultaneously solve problems reuse decommissioned oil wells and low efficiency A-CAES system, a system incorporating abandoned as Tank (AST) is proposed in this paper. The performance underground Oil Well CAES (OW-CAES), aboveground Steel Pipeline (SP-CAES), (ST-CAES)...
We fabricate a buried channel waveguide in neodymium-doped phosphate glass using double line approach by femtosecond laser writing.Raman spectra reveal an expansion of the network irradiated region.Given stress-induced positive refractive index change, waveguiding between two separated tracks is demonstrated.The difference profile reconstructed from measured near-field mode.Propagation loss scattering technique.Microluminescence that Nd 3+ fluorescence property not significantly affected...
Single-shot Gaussian–Bessel laser beams of 1 ps pulse duration and ~ 0.9 μm core size 60 depth focus are used for drilling micro-channels on front side fused silica in ambient condition. Channels ablated at different energies fully characterized by AFM post-processing polishing procedures. We identify experimental energy conditions (typically 1.5 µJ) suitable to fabricate non-tapered channels with mean diameter 1.2 µm length 40 while maintaining an utmost quality the opening channels. In...
The degree of laser pulse overlapping in a scanning path has significant impact on the ablation regime machining micro-texture. In this Letter, nanosecond pulsed is used to prepare micro-scaled groove WC-8Co cermet under different speeds. It observed that as speed increases, ablated trace morphology first pass transits from succession intermittent deep dimples consecutive overlapped shallow pits. test result also indicates with respect low stems plume shielding effect. Moreover, considering...
This study aimed to elucidate the anti-inflammatory and antioxidant properties of resveratrol (RSV) in human gingival fibroblasts (HGFs) following stimulation by P. gingivalis lipopolysaccharide (LPS). The levels inflammatory cytokines IL-1β, IL-6, IL-8 TNFα, activity enzymes SOD GSH-Px, MDA, were evaluated ELISA. It was observed that expression TNFα LPS-induced HGFs significantly downregulated RSV a dose-dependent manner. also partly increased oxidative stress (OS)-related factors,...
We report on the fabrication of tubular depressed cladding waveguides in single crystalline Yb:YAG by direct femtosecond laser writing technique. Full control over confined light spatial distribution is demonstrated photoinscription high index contrast with configuration. Under optical pumping, highly efficient oscillation waveguide at 1030 nm demonstrated. The maximum output power obtained 68 mW a slope efficiency 35% for an outcoupling transmission 50%. A as 44% realized when coupling...
A numerical model, coupling radiative and conductive heat transfer in a polymer powder bed providing local temperature field, is proposed. To simulate the sintering by laser heating as additive manufacturing, double-lines scanning of beam over thin layer studied. An effective volumetric source, using modified Monte Carlo method, estimated from radiation scattering absorption semi-transparent bed. In order to quantify laser-polymer interaction, cooling material modeled simulated with...
We propose to obtain kHz, 10s TW, femtosecond sources through optical parametric chirped pulse amplification (OPCPA) pumped by Yb:YAG thin disk lasers. The final amplifiers of the OPCPA are based on LGS (LiGaS2) crystals with wide transparent range. To suppress quantum defect for high efficiency, designed such that wavelength signal is set very close 1.03 μm, while idler spectra span from 4–8 μm. Multiple different phase-matching configuration can be employed spectral regions support...
Arrays of nanoholes or nanochannels constitute the building block integrated devices that open attractive applications like 2D photonic crystals, metamaterials nanostructured surfaces. Here we present a laser-based technique enables to generate short-length micro-Bessel beams (irrespective their core diameter) further use machine depth-controlled holes with cylindrical depth profile. We illustrate potential this method by fabricating square arrays subwavelength-diameter several-micrometers...