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Transition between nonthermal and thermal ablation of metallic targets under the strike of high-fluence ultrashort laser pulses
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10.1063/1.2168513
/content/aip/journal/apl/88/9/10.1063/1.2168513
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/9/10.1063/1.2168513
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Average ablation depth per pulse versus the pulse duration obtained by drilling through-holes in a-thick aluminum foil at the laser fluence of (a), (b), respectively.

Image of FIG. 2.
FIG. 2.

Optical microscopic images of the debris fall-off pattern of the laser scribed lines on the surface of an aluminum alloy block sample. The three lines are scribed, respectively, with laser pulses of 50 fs (a), 12 ps (b), and continuously scanned from 50 fs to 12 ps (c) for the same pulse energy of . All the other experimental parameters are kept the same.

Image of FIG. 3.
FIG. 3.

SEM images of the grooves and corresponding debris produced with 50 fs laser pulses (a) and (b), and 12 ps laser pulses (c) and (d). Laser pulse energy is in both cases and the sample is an aluminum alloy bulk.

Image of FIG. 4.
FIG. 4.

Laser fluence dependence of the critical pulse width for the experiment of scribing lines on a polished aluminum alloy block sample.

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/content/aip/journal/apl/88/9/10.1063/1.2168513
2006-02-27
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Transition between nonthermal and thermal ablation of metallic targets under the strike of high-fluence ultrashort laser pulses
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/9/10.1063/1.2168513
10.1063/1.2168513
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