Properties of nanoparticles generated during femtosecond laser machining in air and water

被引：175

作者：

Barcikowski, S.

Hahn, A.

Kabashin, A. V.

Chichkov, B. N.

机构：

[1] Laser Zentrum Hannover eV, D-30419 Hannover, Germany

[2] Ecole Polytech, Dept Engn Phys, Montreal, PQ H3C 3A7, Canada

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2007年 / 87卷 / 01期

关键词：

D O I：

10.1007/s00339-006-3852-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Femtosecond laser ablation is used to generate nanoparticle aerosols and colloids from solid targets of various materials (Ti, Ag, Au, Co, etc.) in air and water ambience. We determine the influence of different laser parameters (pulse energy, pulse overlap) and properties of media (air, airbrush, water) on the rate of production and size distribution of the laser-generated nanoparticles. It is shown that the pulse overlap and laser fluence are the parameters determining the nanoparticle size. At optimum conditions the nanoparticle productivity can be increased by 150-300%. The generation of multimaterial nanoparticle dispersions is demonstrated. Being free of toxic impurities, the laser-produced nanoparticles may be promising for biomedical applications.

引用

页码：47 / 55

页数：9

共 52 条

[31] FORMATION OF INTRINSIC SURFACE-DEFECTS DURING 248 NM PHOTOABLATION OF POLYIMIDE [J].