Nanoparticles size modifications during femtosecond laser ablation of nickel in vacuum |
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Authors: | S. Amoruso G. Ausanio R. Bruzzese X. Wang |
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Affiliation: | a Coherentia CNR-INFM and Dipartimento di Scienze Fisiche, Università degli Studi di Napoli Federico II, Via Cintia, I-80126 Napoli, Italy b Coherentia CNR-INFM and Dipartimento di Scienze Fisiche, Università degli Studi di Napoli Federico II, Piazzale V. Tecchio, I-80125 Napoli, Italy |
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Abstract: | Nanoparticles were synthesized by irradiating a nickel target with femtosecond 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. |
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Keywords: | Ultrashort laser ablation Nanoparticles |
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