Nanoparticles size modifications during femtosecond laser ablation of nickel in vacuum

被引:30
作者
Amoruso, S. [1 ]
Ausanio, G. [2 ]
Barone, A. C. [2 ]
Bruzzese, R. [1 ]
Carnpana, C. [2 ]
Wang, X. [1 ]
机构
[1] Univ Naples Federico 2, Coherentia CNR INFM & Dipartimento Sci Fis, I-80126 Naples, Italy
[2] Univ Naples Federico 2, Coherentia CNR INFM & Dipartimento Sci Fis, I-80126 Naples, Italy
关键词
ultrashort laser ablation; nanoparticles;
D O I
10.1016/j.apsusc.2007.06.065
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 [物理化学]; 081704 [应用化学];
摘要
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.
引用
收藏
页码:1012 / 1016
页数:5
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