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Experimental and theoretical studies of particle generation after laser ablation of copper with a background gas at atmospheric pressure
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10.1063/1.2748635
/content/aip/journal/jap/101/12/10.1063/1.2748635
http://aip.metastore.ingenta.com/content/aip/journal/jap/101/12/10.1063/1.2748635
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Experimental setup: the main laser beam (, ) reaches the sample from the direction for the ablation. The probe beam (, ) passes through the vapor plume (where the particles are generated) from the direction. The ICCD camera is aligned in the direction and on the same plane as the sample surface for taking Rayleigh scattering images.

Image of FIG. 2.
FIG. 2.

Schematic of the simulation field.

Image of FIG. 3.
FIG. 3.

(Color online) Laser ablation in argon at after the laser pulse (vapor plume ). (a) Temperature of the vapor plume. (b) Flow field of the vapor plume. (c) Average size (radius) of the condensed particles. (d) Particle number density (e) Geometric standard deviation of the condensed particle size distribution.

Image of FIG. 4.
FIG. 4.

(Color online) Laser ablation in helium at after the laser pulse (vapor plume ). (a) Temperature of the vapor plume. (b) Flow field of the vapor plume. (c) Average size (radius) of the condensed particles. (d) Particle number density. (e) Geometric standard deviation of the condensed particle size distribution.

Image of FIG. 5.
FIG. 5.

(Color online) Laser ablation in argon at after the laser pulse (vapor plume ). (a) Temperature of the vapor plume. (b) Flow field of the vapor plume. (c) Average size (radius) of the condensed particles. (d) Particle number density. (e) Geometric standard deviation of the condensed particle size distribution.

Image of FIG. 6.
FIG. 6.

(Color online) Laser ablation in helium at after the laser pulse (vapor plume ). (a) Temperature of the vapor plume. (b) Flow field of the vapor plume. (c) average size (radius) of the condensed particles. (d) Particle number density. (e) Geometric standard deviation of the condensed particle size distribution.

Image of FIG. 7.
FIG. 7.

(Color online) Rayleigh scattering images of condensed particles from the copper vapor plume in argon at different times after the laser pulse (, , and ).

Image of FIG. 8.
FIG. 8.

(Color online) Rayleigh scattering images of condensed particles from the copper vapor plume in helium at different times after the laser pulse (, , and ).

Image of FIG. 9.
FIG. 9.

(Craters after 50 laser pulses for ablation in argon and helium.

Image of FIG. 10.
FIG. 10.

(Color online) Particle size distributions measured by a digital mobility analyzer (DMA) for ablation in Ar and He.

Image of FIG. 11.
FIG. 11.

SEM images of particles collected on a film for ablation in argon.

Image of FIG. 12.
FIG. 12.

(Color online) TEM images of particles collected on a film for ablation in helium.

Image of FIG. 13.
FIG. 13.

(Color online) Simulated particle size distributions for ablation (a) in Ar and (b) in He.

Image of FIG. 14.
FIG. 14.

Agglomerated particles collected on a for ablation in (a) argon (TEM image) and (b) helium (SEM image).

Image of FIG. 15.
FIG. 15.

(Color online) Rayleigh scattering images of condensed particles from the copper vapor plume in argon at after the laser pulse when the laser spot is close to the edge of the sample.

Image of FIG. 16.
FIG. 16.

(Color online) The evolution of the vortex ring in the vapor plume for the ablation in helium (a) after the laser pulse, (b) after the laser pulse, (c) after the laser pulse.

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/content/aip/journal/jap/101/12/10.1063/1.2748635
2007-06-21
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Experimental and theoretical studies of particle generation after laser ablation of copper with a background gas at atmospheric pressure
http://aip.metastore.ingenta.com/content/aip/journal/jap/101/12/10.1063/1.2748635
10.1063/1.2748635
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