Amoruso, Salvatore and Bruzzese, Riccardo (2009) Double pulse ultrafast laser ablation of nickel in vacuum. [Pubblicazione in rivista scientifica]
Il contenuto (Full text) non è disponibile all'interno di questo archivio.| Tipologia del documento: | Pubblicazione in rivista scientifica | ||||||
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| Lingua: | English | ||||||
| Titolo: | Double pulse ultrafast laser ablation of nickel in vacuum | ||||||
| Autori: |
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| Autore/i: | T. Donnelly, J.G. Lunney, S. Amoruso, R. Bruzzese, X. Wang, X. Ni | ||||||
| Data: | 2009 | ||||||
| Numero di pagine: | 5 | ||||||
| Dipartimento: | Scienze fisiche | ||||||
| Numero identificativo: | 10.1063/1.3159010 | ||||||
| Titolo del periodico: | JOURNAL OF APPLIED PHYSICS | ||||||
| Data: | 2009 | ||||||
| Volume: | 106 | ||||||
| Intervallo di pagine: | 013304-1-013304-5 | ||||||
| Numero di pagine: | 5 | ||||||
| Parole chiave: | Ultrafast laser ablation, Laser produced plasma, Laser matter interaction | ||||||
| Numero identificativo: | 10.1063/1.3159010 | ||||||
| Depositato il: | 21 Ott 2010 06:57 | ||||||
| Ultima modifica: | 30 Apr 2014 19:43 | ||||||
| URI: | http://www.fedoa.unina.it/id/eprint/7603 |
Abstract
We have studied ultrafast laser ablation of nickel using a pair of identical ~250 fs 527 nm laser pulses separated by ~1 to ~1000 ps. Scanning white light interferometry was used to measure the ablated volume, and an ion probe was used to measure the angular distribution of the ablation plasma plume and the total ion emission. As the delay of the second pulse increased from ~10 to 100 ps the ablated volume decreased by more than a factor of 2; indeed it falls to a value below the single pulse case. Conversely, it is found that the ion yield is sharply increased in this delay regime. It seems that both these features can be explained by the interaction of the second laser pulse with the ablated material produced by the first pulse.
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