Understanding shielding cross-effects is a prerequisite for maximal power-specific nanosecond laser ablation in liquids (LAL). However, discrimination between cavitation bubble (CB), nanoparticle (NP), and shielding, e.g., by the plasma or transient vapor layer, challenging. Therefore, CB imaging shadowgraphy performed to better understand beam-NP interaction during LAL. By comparing fluence-de...

During submerged laser peening using a pulsed laser, bubble that behaves like cavitation is generated after ablation (LA). The referred to as (LC). amplitude of the shockwave in water by LA larger than LC; however, impact passing through target metal during LC LA. can be utilized for at optimized conditions. Thus, “laser peening”, method known “cavitation peening”. induced hemispherical more ag...

UV laser ablation of polymers was discovered 20 years ago.1,2 This effect has many fascinating applications in lithography, micromechanics, and medicine. For the last 20 years, more than 103 papers describing this phenomenon were published (see, e.g., comprehensive reviews, refs 3-7). Despite the high research activity, the nature of UV laser ablation of polymers is still far from being fully u...

Methylation at the C2 position of 1,3-disubstituted imidazolium-based ionic liquids (ILs) is one of the structural features that has gained attention due to its drastic impact on thermophysical and transport properties. Several hypotheses have been proposed to explain this effect but there is still much discrepancy. Aiming for the rationalization of the effects of these structural features on t...

The hallmark of ionic liquids lies in their negligible vapor pressure. This ultralow vapor pressure makes it difficult to conduct the direct spectroscopic measurement of ionic-liquid vapors. In fact, there have been no electronic spectroscopic data currently available for ionic-liquid vapors. This deficiency significantly hampers the fundamental understanding of the unique molecular structures ...

In this work, thermo-optical properties of gold nanoparticle colloids are studied using continuous wave (CW) laser irradiation at 532 nm. The nanoparticle colloids are fabricated by 18 ns pulsed laser ablation of pure gold plate in the distilled water. The formation of the nanoparticles has been evidenced by optical absorption spectra and transmission electron microscopy. The nonlinear optical ...

In [RTTS11] we have presented a general introduction to the process of laser ablation, its simulation by the molecular dynamics method, and results for aluminium and a complex metallic alloy. Here we will concentrate on how drops or clusters and voids can be simulated which form during laser ablation. Laser ablation is a process where material is removed from the surface of a solid or liquid by...