Observation of femtosecond-laser-induced ablation plumes of aluminum using space- and time-resolved soft x-ray absorption spectroscopy
The dynamics of the laser ablation plume expansion of aluminum was investigated by using space- and time-resolved soft x-ray absorption spectroscopy. Blueshifts of the Al L -shell photoabsorption edge indicating the state of aluminum were observed in the plumes, which were generated by irradiating a...
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| Veröffentlicht in: | Applied physics letters 2006-11, Vol.89 (22), p.221502-221502-3 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The dynamics of the laser ablation plume expansion of aluminum was investigated by using space- and time-resolved soft x-ray absorption spectroscopy. Blueshifts of the Al
L
-shell photoabsorption edge indicating the state of aluminum were observed in the plumes, which were generated by irradiating an aluminum target with
120
fs
near-infrared pulses at an intensity of
10
14
W
∕
cm
2
. The spatiotemporal evolution of the plumes exhibited a multilayer structure consisting of vaporized aluminum and condensed aluminum particles, following the expansion of plasma, with expansion velocities of
10
4
m
∕
s
for the atomic state and
10
3
m
∕
s
for the condensed state. |
|---|---|
| ISSN: | 0003-6951 1077-3118 |
| DOI: | 10.1063/1.2398931 |