Effects of pulse durations and environments on femtosecond laser ablation of stainless steel

Xu, Shuxin; Ding, Renjie; Yao, Caizhen; Liu, Hao; Wan, Yi; Wang, Jingxuan; Ye, Yayun; Yuan, Xiaodong

doi:10.1007/s00339-018-1714-2

Cited by 24 publications

(14 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bizi-bandoki P. et al [36] prepared porous and splashlike structures in the central ablation region at a higher laser fluence (more than 3.31 J/cm 2 ) and number of pulses (more than 70), and the microscale holes were arranged in an orderly circle, as shown in Figure 7. Similar structures were obtained by Maharjan N. and Xu S. [39,47].…”

Section: Other Structuressupporting

confidence: 85%

“…Bizi-bandoki P. et al [36] found that nanoscale LSFL structures were sensitive only to the number of pulses, with a 15% reduction in the structure period as the number of pulses increased. Yao C., Xu S. and Yasumaru N. [32,47,48] obtained similar influence laws, with the ripple period decreasing with the number of pulses or the number of scans.…”

Section: Pulse Number/scan Numbermentioning

confidence: 75%

“…Oskar Armbruster et al [46] verified that the ablation threshold decreased and stabilized with the laser beam size and decreased with the number of pulses. Shizhen Xu et al [47] studied the influence of the pulse width (35 fs and 260 fs) and processing environment on the ablation threshold of 304 stainless steel, and found that both an air environment and a shorter pulse width were conducive to reducing the ablation threshold.…”

Section: Ablation Threshold and Laser Fluencementioning

confidence: 99%

“…Xu S. et al investigated the effect of the pulse width and environment on the ablation rate of 304 stainless steel [47]. At a lower laser fluence (less than 0.92 J/cm 2 ), the ablation rate was similar despite the different pulse width and experimental environment.…”

Section: Experimental Environmentmentioning

confidence: 99%

See 3 more Smart Citations

Micro/Nano Periodic Surface Structures and Performance of Stainless Steel Machined Using Femtosecond Lasers

Cheng

Zhao

et al. 2022

Micromachines

View full text Add to dashboard Cite

The machining of micro/nano periodic surface structures using a femtosecond laser has been an academic frontier and hotspot in recent years. With an ultrahigh laser fluence and an ultrashort pulse duration, femtosecond laser machining shows unique advantages in material processing. It can process almost any material and can greatly improve the processing accuracy with a minimum machining size and heat-affected zone. Meanwhile, it can fabricate a variety of micro/nano periodic surface structures and then change a material’s surface performance dramatically, such as the material’s wetting performance, corrosive properties, friction properties, and optical properties, demonstrating great application potential in defense, medical, high-end manufacturing, and many other fields. In recent years, the research is gradually deepening from the basic theory to optimization design, intelligent control, and application technology. Nowadays, while focusing on metal structure materials, especially on stainless steel, research institutions in the field of micro and nano manufacturing have conducted systematic and in-depth experimental research using different experimental environments and laser-processing parameters. They have prepared various surface structures with different morphologies and periods with sound performance, and are one step closer to many civilian engineering applications. This paper reviews the study of micro/nano periodic surface structures and the performance of stainless steel machined using a femtosecond laser, obtains the general evolution law of surface structure and performance with the femtosecond laser parameters, points out several key technical challenges for future study, and provides a useful reference for the engineering research and application of femtosecond laser micro/nano processing technology.

show abstract

Section: Other Structuressupporting

confidence: 85%

Section: Pulse Number/scan Numbermentioning

confidence: 75%

Section: Ablation Threshold and Laser Fluencementioning

confidence: 99%

Section: Experimental Environmentmentioning

confidence: 99%

See 2 more Smart Citations

Micro/Nano Periodic Surface Structures and Performance of Stainless Steel Machined Using Femtosecond Lasers

Cheng

Zhao

et al. 2022

Micromachines

View full text Add to dashboard Cite

show abstract

“…With temporal pulse lengths <10 ps in ultrafast laser ablation, the instantaneous energy deposition reduces plasma absorption while minimizing melt and thermal diffusion during the pulse and yield high precision material removal [ 13 , 14 ]. This allows for easy generation of plasmonic, interferometric and hierarchical microstructures on, for example, stainless steel [ 15 , 16 , 17 ]. In metals, which have absorption coefficients typically α ~10 6 cm −1 , a thin layer with thickness d ~10–30 nm is converted to a plasma at a solid density which expands well after the pulse is absorbed [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Backward Flux Re-Deposition Patterns during Multi-Spot Laser Ablation of Stainless Steel with Picosecond and Femtosecond Pulses in Air

et al. 2021

View full text Add to dashboard Cite

We report on novel observations of directed re-deposition of ablation debris during the ultrafast laser micro-structuring of stainless steel in the air with multi-beams in close proximity on the surface. This interesting phenomenon is observed with both 10 ps and 600 fs NIR laser pulses at 5 kHz repetition rate. Ablation spot geometries could be altered with the use of beam splitting optics or a phase-only Spatial Light modulator. At low fluence (F ~ 1.0 J cm−2) and pulse exposure of a few hundred pulses, the debris appears as concentrated narrow “filaments” connecting the ablation spots, while at higher fluence, (F ~ 5.0 J cm−2) energetic jets of material emanated symmetrically along the axes of symmetry, depositing debris well beyond the typical re-deposition radius with a single spot. Patterns of backward re-deposition of debris to the surface are likely connected with the colliding shock waves and plasma plumes with the ambient air causing stagnation when the spots are in close proximity. The 2D surface debris patterns are indicative of the complex 3D interactions involved over wide timescales during ablation from picoseconds to microseconds.

show abstract

Optical, structural and morphological studies of nanostructures fabricated on silicon surface by femtosecond laser irradiation

et al. 2022

View full text Add to dashboard Cite

We report here a detailed analysis of the ultrashort laser pulse irradiation effects on a single crystalline silicon surface. A systematic study has been performed to understand the surface morphological changes under irradiation with ultrashort laser pulses by changing different input laser parameters such as laser fluence, laser pulse number, and incident laser polarization. Field emission scanning electron microscopy images reveal the formation of laser induced periodic sub-wavelength surface structures directly on bulk surface. The orientation of the formed sub-wavelength surface structures is perpendicular to the incident laser polarization and their morphology and spatial periodicity strongly depend on the applied laser fluence and laser pulse number. The sub-wavelength surface structures are accompanied by the formation of a large density of silicon nanoparticles which possess broad visible photoluminescence ranging from 410 nm to 680 nm which is due to superficial oxidation of silicon during laser irradiation. The amount of oxygen incorporated into silicon strongly depends on laser parameters such as laser fluence and number of laser pulses.

show abstract

Effects of pulse durations and environments on femtosecond laser ablation of stainless steel

Cited by 24 publications

References 37 publications

Micro/Nano Periodic Surface Structures and Performance of Stainless Steel Machined Using Femtosecond Lasers

Micro/Nano Periodic Surface Structures and Performance of Stainless Steel Machined Using Femtosecond Lasers

Backward Flux Re-Deposition Patterns during Multi-Spot Laser Ablation of Stainless Steel with Picosecond and Femtosecond Pulses in Air

Optical, structural and morphological studies of nanostructures fabricated on silicon surface by femtosecond laser irradiation

Contact Info

Product

Resources

About