A5029516276- Laser Material Processing Techniques
- Surface Modification and Superhydrophobicity
- Metal and Thin Film Mechanics
- Ocular and Laser Science Research
- Surface Roughness and Optical Measurements
- Surface Treatment and Residual Stress
- Adhesion, Friction, and Surface Interactions
- Nonlinear Optical Materials Studies
- Laser-Matter Interactions and Applications
- Fluid Dynamics and Heat Transfer
- Advanced Surface Polishing Techniques
- Orbital Angular Momentum in Optics
- Diamond and Carbon-based Materials Research
- Photorefractive and Nonlinear Optics
- High Entropy Alloys Studies
- Bone Tissue Engineering Materials
- Laser Design and Applications
- Laser-induced spectroscopy and plasma
- MXene and MAX Phase Materials
- Advanced Computational Techniques and Applications
- Corrosion Behavior and Inhibition
- Optical measurement and interference techniques
- Heat Transfer Mechanisms
- Laser-Ablation Synthesis of Nanoparticles
- Advanced Memory and Neural Computing
Hubei University of Technology
2022-2025
Nanjing University of Posts and Telecommunications
2023
University of Liverpool
2020-2022
Flexible wearable sensors are widely used in various fields with the development of technology. However, it is necessary to consider interference they may be subjected environments such as rainy and humid conditions practical applications. Superhydrophobic surfaces can effectively improve stability flexible harsh environments. In this study, a method proposed achieve desired superhydrophobic properties for anti‐droplet by surface processing Polydimethylsiloxane/multiwalled carbon nanotubes...
Regarding the issue of precision machining NiTi alloys, a nanosecond laser is used to polish alloy surfaces with different initial surface roughnesses. The effects polishing on microstructure, morphology, microhardness, and corrosion properties are investigated using polarized light microscope, X‐ray photoelectron spectroscopy, microhardness testing, an electrochemical workstation. A 2D transient model process established, which analyses flow molten metal parameters morphology evolution....
Aerospace engines made of the NiTi alloy exhibit fatigue damage after a period service, significantly impacting reliability aircraft engines. To address this issue, femtosecond laser surface strengthening treatment is applied to alloy. The structure and mechanical properties laser‐treated are observed using white light interference, Vickers microhardness tester, X‐ray diffractometer, metallographic optical microscope. results indicate that with increase fluence, roughness initially increases...
The optical nonlinearity in polycrystalline zinc selenide (ZnSe), excited with 775 nm, 1 kHz femtosecond laser pulses was investigated via the nonlinear transmission material thickness and Z scan technique. measured two photon absorption coefficient <em>β</em> intensity dependent, inferring that reverse saturated (RSA) is also relevant during high excitation ZnSe. At low peak <em>I</em> < 5 GW cm<sup>–2</sup>, we find = 3.5 cm GW<sup>–1</sup> at nm. spectral properties of broad blueish...
Diffractive multi-beams based on 1 × 5 and 2 binary Dammann gratings applied to a spatial light modulator (SLM) combined with nanostructured S-wave plate have been used generate uniform multiple cylindrical vector beams radial azimuthal polarizations. The quality factor (concurrence) of the single vortex beam was found be C = 0.95 ± 0.02, hence showing high degree purity. ablate polished metal samples (Ti-6Al-4V) laser-induced periodic surface structures (LIPSS), which confirm polarization...
Abstract Cylindrical vector vortex (CVV) beams are topical forms of structured light, and have been studied extensively as single beams, non-separable in two degrees freedom: spatial mode polarisation. Here we create arrays CVV using a combination dynamic phase controlled Dammann gratings spin–orbit coupling through azimuthally varying geometric phase. We demonstrate control over the number, geometry vectorness by simple adjustment waveplates computer generated holograms. To quantify...
Abstract Laser micro-structuring of amorphous polyether(ether)ketone (PEEK) has been demonstrated with 180 fs/1 kHz NIR (775 nm) and NUV (387 laser pulses. Significant differences in laser-material interaction is observed between the wavelengths single pulse ablation threshold found to be 2.01 ± 0.05 J cm −2 0.23 0.02 at 775 nm 387 respectively. This connected requirement for multi-photon absorption nm, where PEEK transparent, while significant linear within material bandgap occurs,...
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In addressing issues related to defects in laser quenching technologies, this study undertakes surface passivation treatment on 2205 duplex stainless steel. The investigation explores the impact of different parameters corrosion resistance passive film steel surface. findings may provide theoretical references for and mechanism surfaces.
Polyether(ether)ketone (PEEK) has been widely used in the electronics and biomedical industries due to excellent electrical, chemical thermal stability. The ablation optical properties of amorphous PEEK have investigated using ultrahigh intensity fs laser pulses (180 fs/ 1 kHz) for precision manufacture. single pulse threshold was found be 2.01±0.05 J cm-2 0.23±0.02 at 775 nm 387 respectively. significant difference attributed change wavelength dependent nonlinear absorption order from...
Laser micro-machining of amorphous PEEK has been demonstrated with 180 fs/1 kHz NIR (775 nm) and NUV (387 laser pulses. The single pulse ablation threshold was found to be 2.01 ± 0.05 J/cm<sup>2</sup> 0.23 ± 0.02 at 775 nm 387 respectively. significant difference in is due the requirement for 3-photon absorption nm, where transparent while linear within material bandgap occurs enhancing 2-photon absorption. A high coefficient, measured β<sub>387</sub> ~ 38 cm GW<sup>-1</sup>...
The construction of knowledge graph is beneficial for grid production, electrical safety protection, fault diagnosis and traceability in an observable controllable way. Highly-precision text classification algorithm crucial to build a professional power system. Unfortunately, there are large number poorly described specialized texts the business system, amount data containing valid labels these low. This will bring great challenges improve precision models. To offset gap, we propose Chinese...
Improving the biomineralization of ZrO 2 ceramics surface is great significance for field dentistry. A femtosecond laser used to prepare micro–nano structures on ceramics. The contact angle, micromorphology, and chemical composition material are characterized using a angle measurement instrument, scanning electron microscope, energy‐dispersive spectroscopy. changes wettability different samples areanalyzed, micropit surfaces evaluated through hydroxyapatite (HA) deposition experiments....