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Effect of ambient air pressure on debris redeposition during laser ablation of glass
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10.1063/1.2138800
/content/aip/journal/jap/98/11/10.1063/1.2138800
http://aip.metastore.ingenta.com/content/aip/journal/jap/98/11/10.1063/1.2138800
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

SEM photographs of the ablated target showing the morphology of the redeposited debris near and around the ablated crater. The laser fluence , the ambient pressure , and the number of shots . (a) Overall profile of the debris field with areas of expanded images marked. (b) Ablated crater and large bits of redeposited molten glass. (c)–(f) show, in sequence, the target morphology at larger magnification as one moves radially outward from the ablation center.

Image of FIG. 2.
FIG. 2.

SEM photographs of the ablated target showing the morphology of the redeposited debris near and around the ablated crater. The laser fluence , the ambient pressure , and the number of shots . (a) Overall profile of the region around the ablation center with areas of expanded images marked. (b)–(e) show, in sequence, the target morphology at larger magnification as one moves radially outward from the ablation center.

Image of FIG. 3.
FIG. 3.

SEM photograph of the ablated target. The image shows a smoother and cleaner debris morphology at a laser fluence , ambient air pressure , and number of shots .

Image of FIG. 4.
FIG. 4.

Microscope image of the colored rings formed due to interference of light from the thin film formed due to redeposition of debris on the tungsten coating. The laser fluence , the ambient air pressure , and the number of shots .

Image of FIG. 5.
FIG. 5.

Dependence of the mass of redeposited debris on laser fluence for different ambient air pressures for the case of 200 laser shots.

Image of FIG. 6.
FIG. 6.

(a) Dependence of ablated mass on laser fluence; (b) ablation depth vs laser fluence. In both cases, the number of laser shots was . The ambient pressure was .

Image of FIG. 7.
FIG. 7.

Percentage of the redeposited debris mass vs laser fluence for different ambient air pressures for the case of 200 laser shots.

Image of FIG. 8.
FIG. 8.

Plot of the measured debris field radius vs the inverse cube root of the ambient air pressure . A linear regression fit to the experimental data is shown as a solid line.

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/content/aip/journal/jap/98/11/10.1063/1.2138800
2005-12-13
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of ambient air pressure on debris redeposition during laser ablation of glass
http://aip.metastore.ingenta.com/content/aip/journal/jap/98/11/10.1063/1.2138800
10.1063/1.2138800
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