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 ferntosecond pulses induced ablation plume with a second, delayed ultraviolet laser pulse can change the size characteristics of the produced nanoparticles. (C) 2007 Elsevier B.V. All rights reserved.
Nanoparticles size modifications during femtosecond laser ablation of nickel in vacuum
Amoruso S;Ausanio G;Bruzzese R;Wang X
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 ferntosecond pulses induced ablation plume with a second, delayed ultraviolet laser pulse can change the size characteristics of the produced nanoparticles. (C) 2007 Elsevier B.V. All rights reserved.File in questo prodotto:
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