Nanoparticles were synthesized by irradiating a nickel target with ferntosecond laser pulses in high vacuum, and subsequently analyzed. The proof-of-principle experiments aim to modify the size characteristics of the produced nanoparticles. For nickel it is found that: (i) ultraviolet laser pulses lead to a remarkable change in the nanoparticles size distribution with respect to visible laser pulses; (ii) irradiation of the femtosecond pulses induced ablation plume with a second, delayed ultraviolet laser pulse can change the size characteristics of the produced nanoparticles.
Nanoparticles size modifications during femtosecond laser ablation of nickel in vacuum / Amoruso, Salvatore; Ausanio, Giovanni; A. C., Barone; Bruzzese, Riccardo; C., Campana; X., Wang. - In: APPLIED SURFACE SCIENCE. - ISSN 0169-4332. - STAMPA. - 254:(2007), pp. 1012-1016. [10.1016/j.apsusc.2007.06.065]
Nanoparticles size modifications during femtosecond laser ablation of nickel in vacuum
AMORUSO, SALVATORE;AUSANIO, GIOVANNI;BRUZZESE, RICCARDO;
2007
Abstract
Nanoparticles were synthesized by irradiating a nickel target with ferntosecond laser pulses in high vacuum, and subsequently analyzed. The proof-of-principle experiments aim to modify the size characteristics of the produced nanoparticles. For nickel it is found that: (i) ultraviolet laser pulses lead to a remarkable change in the nanoparticles size distribution with respect to visible laser pulses; (ii) irradiation of the femtosecond pulses induced ablation plume with a second, delayed ultraviolet laser pulse can change the size characteristics of the produced nanoparticles.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
