Impact of liquid environment on femtosecond laser ablation

Kanitz, Alexander; Hoppius, Jan S.; Fiebrandt, Marcel; Awakowicz, Peter; Esen, Cemal; Ostendorf, Andreas; Gurevich, Evgeny L.

doi:10.1007/s00339-017-1280-z

Cited by 29 publications

(32 citation statements)

References 47 publications

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“…Especially for ultrashort laser pulses, which intensity is high enough to trigger nonlinear optical processes in the liquid, the interaction between the latter and the laser light becomes very complex. For example, it was shown, that already for single pulses, the used liquid has a significant impact on the ablation efficiency [10]. Furthermore, the laser beam undergoes self-focusing, the pulse duration and spectrum change as well as gas bubbles born upon ablation scatter the following pulses.…”

Section: Introductionmentioning

confidence: 99%

Optimization of femtosecond laser processing in liquids

Hoppius

Maragkaki

Kanitz

et al. 2019

Applied Surface Science

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In this paper we analyze femtosecond laser processing of metals in liquids searching for optimal conditions for predictable ablation. Incident laser pulses are stretched or compressed, self-focused and scattered on bubbles and on surface waves in the liquid environment. Influence of these effects on the laser intensity distribution on the target surface is discussed and optimal processing parameters are suggested.

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Section: Introductionmentioning

confidence: 99%

Optimization of femtosecond laser processing in liquids

Hoppius

Maragkaki

Kanitz

et al. 2019

Applied Surface Science

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“…This mainly was due to the higher rates of ablation using water instead of ethanol. 38,39 In addition, water is both economically and ecologically advantageous compared to ethanol. The XRD data of the NPs synthesized in different solvents indicated slight differences in the crystal structure (Fig.…”

Section: Resultsmentioning

confidence: 99%

Kinetically-controlled laser-synthesis of colloidal high-entropy alloy nanoparticles

et al. 2019

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“…This finding is similar to that of femtosecond laser ablation of SiO 2 /Si in n-hexane [ 47 ]. It may thus correlate with pyrolysis and photolysis of high-carbon-number solvents and the formation of carbon products that impact the ablation efficiency, since ablation of Fe [ 46 ] targets in toluene was also low.…”

Section: Resultsmentioning

confidence: 99%

“…Among multiple factors in ultrafast processing, the ablation environment significantly affects the observables. The chemical composition of the liquid not only affects the ablation efficiency [ 46 , 47 ] but also affects the chemical composition of either targets or NPs, since laser interaction with liquids can lead to solvent photolysis and pyrolysis [ 23 , 47 , 48 , 49 , 50 ]. However, only a few studies on materials in liquids exist which describe the influence of the liquid environment on multi-pulse femtosecond ablation efficiency and crater morphology [ 46 , 47 , 51 , 52 , 53 , 54 , 55 , 56 , 57 ], so this aspect calls for further experimental investigations.…”

Section: Introductionmentioning

confidence: 99%

Near-Infrared Femtosecond Laser Ablation of Au-Coated Ni: Effect of Organic Fluids and Water on Crater Morphology, Ablation Efficiency and Hydrodynamic Properties of NiAu Nanoparticles

et al. 2021

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Scanning electron microscopy (SEM) and profilometry of the crater morphology and ablation efficiency upon femtosecond laser ablation of Au-coated Ni targets in various fluids revealed a pronounced dependence on the ablation medium. For ethanol, a sufficient ablation efficiency was obtained, whereas for 2-butanol a higher efficiency indicated stronger laser–target interaction. Hierarchical features in the crater periphery pointed to asymmetrical energy deposition or a residual effect of the Coulomb-explosion-initiating ablation. Significant beam deviation in 2-butanol caused maximum multiple scattering at the crater bottom. The highest values of microstrain and increased grain size, obtained from Williamson–Hall plots, indicated the superposition of mechanical stress, defect formation and propagation of fatigue cracks in the crater circumference. For n-hexane, deposition of frozen droplets in the outer crater region suggested a femtosecond-laser-induced phase explosion. A maximum ablation depth occurred in water, likely due to its high cooling efficiency. Grazing incidence micro X-ray diffraction (GIXRD) of the used target showed residual carbon and partial surface oxidation. The produced nanoparticle colloids were examined by multiangle dynamic light scattering (DLS), employing larger scattering angles for higher sensitivity toward smaller nanoparticles. The smallest nanoparticles were obtained in 2-butanol and ethanol. In n-hexane, floating carbon flakes originated from femtosecond-laser-induced solvent decomposition.

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Impact of liquid environment on femtosecond laser ablation

Cited by 29 publications

References 47 publications

Optimization of femtosecond laser processing in liquids

Optimization of femtosecond laser processing in liquids

Kinetically-controlled laser-synthesis of colloidal high-entropy alloy nanoparticles

Near-Infrared Femtosecond Laser Ablation of Au-Coated Ni: Effect of Organic Fluids and Water on Crater Morphology, Ablation Efficiency and Hydrodynamic Properties of NiAu Nanoparticles

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