Expansion of laser-induced plume after the passage of a counter shock wave through a background gas

Higo, Akira; Katayama, Keita; Fukuoka, Hiroshi; Yoshida, Takehiro; Aoki, T.; Yaga, Minoru; Umezu, Ikurou

doi:10.1007/s00339-020-03476-8

Cited by 2 publications

(2 citation statements)

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“…In general, the size distribution of nanoparticles f x (x) growing in vapor phase is known to be described as the log-geometric distribution as follow [29]. (6) Here m g is the geometric mean and σ g is the geometric standard deviation. A model has been proposed to explain the log-geometric distribution by assuming that the growth formula of a nanoparticle follows a certain Equation [30,31].…”

Section: Films Fabricated By Monodispersed Nanoparticle Beams 31 Monmentioning

confidence: 99%

“…In the 21st century, effect which shock waves have on the formation way of nanoparticle during laser ablation has been investigated [2,3]. Several researches [4][5][6] in which the shock waves are positively used to form monodispersed nanoparticles and composite nanoparticles like core-shell type have been conducted. The laser ablation in nanoparticle research is regarded as the promising method at present which is possible to fabricate a novel function device in the area of electricity, semiconductor, energy and so on.…”

Section: Introductionmentioning

confidence: 99%

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Nanoparticle Formation and Deposition by Pulsed Laser Ablation

Takiya¹,

Fukuda²

2021

Practical Applications of Laser Ablation

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Pulsed Laser Ablation (PLA) in background gas is a good technique to acquire specific nanoparticles under strong non-equilibrium states. Here, after a history of PLA is mentioned, the application of nanoparticles and its deposition films to the several fields will be described. On the target surface heated with PLA, a Knudsen layer is formed around the adjacent region of the surface, and high-pressure and high-temperature vapor atoms are generated. The plume formed by evaporated atoms blasts off with very high-speed and expands rapidly with a shock wave. A supercooling phenomenon occurs during this process, and number of nucleus of nanoparticle forms in vapor-phase. The nuclei grow by the condensation of vapor atoms and deposit on a substrate as nanoparticle film. If the radius of nanoparticle is uniformized, a self-ordering formation can be shown as a result of interactive process between each nanoparticle of the same size on the substrate. In this chapter, the related technology to realize a series of these processes will be expounded.

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Section: Films Fabricated By Monodispersed Nanoparticle Beams 31 Monmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%