Features of plasma plume evolution and material removal efficiency during femtosecond laser ablation of nickel in high vacuum (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Features of plasma plume evolution and material removal efficiency during femtosecond laser ablation of nickel in high vacuum (Articolo in rivista) (literal)

Anno

• 2007-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1007/s00339-007-4211-6 (literal)

Alternative label

• Amoruso S.; Bruzzese R.; Pagano C.; Wang X. (2007)
  Features of plasma plume evolution and material removal efficiency during femtosecond laser ablation of nickel in high vacuum
  in Applied physics. A, Materials science & processing (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Amoruso S.; Bruzzese R.; Pagano C.; Wang X. (literal)

Pagina inizio

• 1017 (literal)

Pagina fine

• 1024 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 89 (literal)

Rivista

• Applied physics. A, Materials science & processing (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 4 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Univ Naples Federico 2, Coherentia CNR INFM, Dipartimento Sci Fisiche, I-80126 Naples, Italy (literal)

Titolo

• Features of plasma plume evolution and material removal efficiency during femtosecond laser ablation of nickel in high vacuum (literal)

Abstract

• We present an experimental characterization describing the characteristics features of the plasma plume dynamics and material removal efficiency during ultrashort, visible (527 nm, approximate to 300 fs) laser ablation of nickel in high vacuum. The spatio-temporal structure and expansion dynamics of the laser ablation plasma plume are investigated by using both time-gated fast imaging and optical emission spectroscopy. The spatio-temporal evolution of the ablation plume exhibits a layered structure which changes with the laser pulse fluence F. At low laser fluences (F < 0.5 J/cm(2)) the plume consists of two main populations: fast Ni atoms and slower Ni nanoparticles, with average velocities of approximate to 10(4) m/s for the atomic state and approximate to 10(2) m/s for the condensed state. At larger fluences (F > 0.5 J/cm(2)), a third component of much faster atoms is observed to precede the main atomic plume component. These atoms can be ascribed to the recombination of faster ions with electrons in the early stages of the plume evolution. A particularly interesting feature of our analysis is that the study of the ablation efficiency as a function of the laser fluence indicates the existence of an optimal fluence range (a maximum) for nanoparticles generation, and an increase of atomization at larger fluences. (literal)

Prodotto di

• Film sottili ed elettronica degli ossidi (MD.P04.016.001) (Modulo)

Autore CNR

• RICCARDO BRUZZESE (Unità di personale esterno)
• XUAN WANG (Unità di personale interno)
• SALVATORE AMORUSO (Unità di personale esterno)

Insieme di parole chiave

• Parole chiave di "Features of plasma plume evolution and material removal efficiency during femtosecond laser ablation of nickel in high vacuum" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• XUAN WANG (Unità di personale interno)
• RICCARDO BRUZZESE (Unità di personale esterno)
• SALVATORE AMORUSO (Unità di personale esterno)

Prodotto

• Film sottili ed elettronica degli ossidi (MD.P04.016.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Applied physics. A, Materials science & processing (Rivista)

Insieme di parole chiave di

• Parole chiave di "Features of plasma plume evolution and material removal efficiency during femtosecond laser ablation of nickel in high vacuum" (Insieme di parole chiave)