Pulsed laser ablation in liquids: Impact of the bubble dynamics on particle formation

Reich, Stefan; Schönfeld, Patrick; Wagener, Philipp; Letzel, Alexander; Ibrahimkutty, Shyjumon; Gökce, Bilal; Barcikowski, Stephan; Menzel, Andreas; Rolo, Tomy dos Santos; Plech, Anton

doi:10.1016/j.jcis.2016.08.030

Cited by 85 publications

(49 citation statements)

References 42 publications

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“…[30] As reported earlier,b oth show similar dynamics for the first bubble with differing bubble sizes. [30,33] Bubble volumes on the two targets are slightly different and have been scaled for ab etter overlay.T he linear relationship of bubble volume with laser fluence indicates that the laser energy is almost quantitatively converted to creating the bubble. Its volumea tm aximum expansion,w here the internal pressure falls below the ambient pressure, can be taken as measure for the energy content.…”

Section: Laser Fluencesupporting

confidence: 79%

“…Whereas the first bubble remains spherical in both cases, the bubbler ebound behaves differently.I ts hows some internal structure, which has been explained earlier [30] by an on-spherical shape with ad epression at the laser impact point. Although the pulse energy is kept constant, the fluence has been reduced by the cylinderl ens by af actor of five, which directly affects the bubble size and supportst he threshold phenomenon.…”

Section: Focal Distancementioning

confidence: 68%

“…[26][27][28] When at arget is placed behind the focal point, we can observe bubble formation on the target and before the target in the water phase (see videograph in Figure 1a nd sketch in Figure 2, top). [29] Even below this threshold we can still observe very short lived microbubbles along the laser path, [30] whichi nc ontrast do not merge. [29] Even below this threshold we can still observe very short lived microbubbles along the laser path, [30] whichi nc ontrast do not merge.…”

Section: Focal Distancementioning

confidence: 99%

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Fluence Threshold Behaviour on Ablation and Bubble Formation in Pulsed Laser Ablation in Liquids

et al. 2017

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The ablation yield and bubble-formation process during nanosecond pulsed-laser ablation of silver in water are analysed by stroboscopic videography, time-resolved X-ray radiography and in situ UV/Vis spectroscopy. This process is studied as function of lens-target distance and laser fluence. Both the ablation yield and the bubble-cavitation process exhibit threshold behaviour as a function of fluence, which is linked to the efficiency of coupling of energy at the water/target interface. Although ablation happens below this threshold, quantitative material emission is linked to bubble formation. Above the threshold, both bubble size and ablation show linear behaviour.

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Section: Laser Fluencesupporting

confidence: 79%

Section: Focal Distancementioning

confidence: 68%

Section: Focal Distancementioning

confidence: 99%

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Fluence Threshold Behaviour on Ablation and Bubble Formation in Pulsed Laser Ablation in Liquids

et al. 2017

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“…The interaction of the laser beam with the liquid also affects particle formation. Bubbles and cavitation result from laser-induced plasma generation and affect nanoparticle fragmentation [36,37]. In addition, the aqueous solution influences the formation of clusters of nanoparticles [38].…”

Section: Effect Of Laser Pulse Widthmentioning

confidence: 99%

The Effect of Laser Pulse Widths on Laser—Ag Nanoparticle Interaction: Femto- to Nanosecond Lasers

et al. 2018

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Abstract:The effect of the laser pulse width on the production of nanoparticles by laser fragmentation was investigated. Laser pulse widths of 164 fs, 5 ps, 4 ns, 36 ns, 64 ns, and 100 ns were used. To assess the effect of the laser pulse width on the energy distribution in the nanoparticles, the energy distribution was simulated using wave optics. Silver (Ag) nanoparticles were produced by laser irradiation of an Ag target in distilled water. The wavelength of the femtosecond, picosecond, and nanosecond lasers used was 1070 nm, and their fluences were 0.10-0.13 mJ/cm 2 . Nanoparticle microstructure was visualized by transmission electron microscopy and scanning electron microscopy, and the nanoparticle size distribution was evaluated using a particle size analyzer.

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“…2, the laser induces a plasma plume [29] which is followed by a cavitation bubble [30,31]. Within this cavitation bubble, the nanoparticles are formed [32] and are dispersed into the liquid when the bubble collapses. A detailed description of the mechanism can be found elsewhere [33,34].…”

Section: Process Starting Point: Laser Synthesis Of Colloidsmentioning

confidence: 99%

Process Chain for the Fabrication of Nanoparticle Polymer Composites by Laser Ablation Synthesis

2017

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Nanoparticle polymer composites are of growing interest due to their unique properties. However, conventional composite synthesis methods usually require several process steps including steps for cleaning and improving the particlematrix dispersion. As an alternative, laser ablation synthesis can be used to prepare tunable composite materials. This method enables an easy process chain, without the need of additional steps. In this status report, the process chain of laser-based pre-series fabrication of nanocomposites is visualized, and the increase of the method's technology readiness level is demonstrated. The process steps are demonstrated from the synthesis of the colloid to applicable functional products. The advantages of using laser ablation for nanocomposite synthesis are highlighted.

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Pulsed laser ablation in liquids: Impact of the bubble dynamics on particle formation

Cited by 85 publications

References 42 publications

Fluence Threshold Behaviour on Ablation and Bubble Formation in Pulsed Laser Ablation in Liquids

Fluence Threshold Behaviour on Ablation and Bubble Formation in Pulsed Laser Ablation in Liquids

The Effect of Laser Pulse Widths on Laser—Ag Nanoparticle Interaction: Femto- to Nanosecond Lasers

Process Chain for the Fabrication of Nanoparticle Polymer Composites by Laser Ablation Synthesis

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