Nanosecond-laser plasma-mediated generation of colloidal solutions from silver films of variable thickness: Colloidal optical density versus predetermined ablated mass

被引：12

作者：

Nastulyavichus, Alena Alexandrovna ^{[1
]}

Kudryashov, Sergey Ivanovich ^{[1
,2
]}

Smirnov, Nikita Alexandrovich ^{[1
]}

Rudenko, Andrey Andreevich ^{[1
]}

Kharin, Alexander Yurievich ^{[2
,3
]}

Zayarny, Dmitriy Al'bertovich ^{[1
]}

Ionin, Andrey Alexeyevich ^{[1
]}

机构：

[1] Lebedev Phys Inst, Leninskiy Prospect 53, Moscow 119991, Russia

[2] Natl Res Nucl Univ MEPhI Moscow Engn Phys Inst, Moscow 115409, Russia

[3] Lomonosov Moscow State Univ, Moscow 119991, Russia

来源：

OPTICS AND LASER TECHNOLOGY | 2019年 / 111卷

关键词：

Silver films of variable thickness; Nanosecond laser ablation; Ablative plasma; Colloidal solutions; Optical density; Nanoparticle size; INDUCED PHASE EXPLOSION; HIGH-POWER; NANOPARTICLES; TARGETS; WATER;

D O I：

10.1016/j.optlastec.2018.09.038

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Metal nanoparticles have attracted much attention due to their unique properties. One of the important aspects is particle size control for the use of their colloids in various applications. Colloidal solutions of silver nanoparticles were generated in water from silver films of variable thickness at different intensities of a nanosecond fiber laser marker (Bulat) on Yb3 + ions and its scanning speeds over the film surfaces in the laser-plasma ablation regime. The obtained colloidal nanoparticles were characterized by scanning electron microscopy, optical transmission spectroscopy, and dynamic light scattering. A monotonic increase in the extinction coefficient and in the size of the colloidal particles was observed as a function of laser intensity and exposure.

引用

页码：75 / 80

页数：6