We investigated the process of ultrafast laser ablation of metallic targets induced by a pair of identical laser pulses, with either p or s polarizations, temporally delayed from approximate to 1 ps to a few nanoseconds. We used fast ion probe diagnostics to characterize the ion plume at the moderate laser intensity (approximate to 10(12) W/cm(2)) typically employed in ultrafast laser deposition and material processing. We observed a consistent time-correlated enhancement of the ion yield and velocity, which lends itself to an interesting and useful method for manipulating ablation plasma characteristics. The mechanisms producing this feature are also discussed.

Ultrafast laser ablation of metals with a pair of collinear laser pulses / Amoruso, Salvatore; Bruzzese, Riccardo; X., Wang; J., Xia. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - STAMPA. - 93:19(2008), pp. 191504-1-191504-3. [10.1063/1.3026533]

Ultrafast laser ablation of metals with a pair of collinear laser pulses

AMORUSO, SALVATORE;BRUZZESE, RICCARDO;
2008

Abstract

We investigated the process of ultrafast laser ablation of metallic targets induced by a pair of identical laser pulses, with either p or s polarizations, temporally delayed from approximate to 1 ps to a few nanoseconds. We used fast ion probe diagnostics to characterize the ion plume at the moderate laser intensity (approximate to 10(12) W/cm(2)) typically employed in ultrafast laser deposition and material processing. We observed a consistent time-correlated enhancement of the ion yield and velocity, which lends itself to an interesting and useful method for manipulating ablation plasma characteristics. The mechanisms producing this feature are also discussed.
2008
Ultrafast laser ablation of metals with a pair of collinear laser pulses / Amoruso, Salvatore; Bruzzese, Riccardo; X., Wang; J., Xia. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - STAMPA. - 93:19(2008), pp. 191504-1-191504-3. [10.1063/1.3026533]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/347096
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