Effect of liquid level and laser power on the formation of spherical alumina nanoparticles by nanosecond laser ablation of alumina target

A comparison of laser beam machining of micro-channels under dry and wet mediums

“…Referring to the studies of the references [46][47][48][49], the suitable water-film thickness above work top surface ranges from 1 to 2 mm. In our pilot experimental runs, the waterfilm thickness (in still mode of water) was progressively selected in the range of 0.5, 1, 1.5, and 2 mm.…”

Tunable green to red ZrO2:Er nanophosphors

“…Some examples are the works reported by the S. A. Al-Mamun et al 58,59 in which they studied almost all these parameters for the case Al 2 O 3 NPs produced by PLAL in water, yielding to narrower size Fig. 2 Raman spectra of the targets (left) and PLAL produced NPs (right) by using 325 nm wavelength excitation in backscattering geometry.…”

Effects of water depth and laser pulse numbers on size properties of colloidal nanoparticles prepared by nanosecond pulsed laser ablation in liquid

“…The ablation rate increases with liquid depth if the target is placed lower than the above mentioned specific depth. Further increase in the liquid depth over a certain value causes a decrease (with a saturation value) in the ablation rate due to lower laser energy delivered to the target [7,21]. The decrease in the laser energy absorbed by the target decreases the temperature and pressure of the induced plasma.…”

“…Effects of water depth above target and number of laser pulses on size properties of colloidal nanoparticles have been investigated by a few numbers of authors [21,22]. For example, it was shown that particle' size decreases by increasing water depth [21].…”

“…Effects of water depth above target and number of laser pulses on size properties of colloidal nanoparticles have been investigated by a few numbers of authors [21,22]. For example, it was shown that particle' size decreases by increasing water depth [21]. Furthermore, the other reports showed that an increase in the number of laser pulses results in finer nanoparticles [23,24].…”