Revealing the nanoparticles aspect ratio in the glass-metal nanocomposites irradiated with femtosecond laser.
Revealing the nanoparticles aspect ratio in the glass-metal nanocomposites irradiated with femtosecond laser.
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DOI：
10.1038/srep13746
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发表时间：
2015-09-08
影响因子：
4.6
通讯作者：
Kazansky PG
中科院分区：
文献类型：
--
作者：
Chervinskii S;Drevinskas R;Karpov DV;Beresna M;Lipovskii AA;Svirko YP;Kazansky PG
研究了钠钙玻璃中银纳米颗粒的飞秒激光成形。将实验吸收光谱与基于麦克斯韦加内特近似修正的球状夹杂物模型进行比较，得到了重新成形的银纳米颗粒的平均纵横比随激光能量密度的变化关系。我们证明，在我们的实验条件下，球形的银纳米粒子改变为一个长球形的纵横比高达3.5，在0.6 J/cm 2的激光能量密度。所开发的方法可以用来控制玻璃-金属复合材料的各向异性。
We studied a femtosecond laser shaping of silver nanoparticles embedded in soda-lime glass. Comparing experimental absorption spectra with the modeling based on Maxwell Garnett approximation modified for spheroidal inclusions, we obtained the mean aspect ratio of the re-shaped silver nanoparticles as a function of the laser fluence. We demonstrated that under our experimental conditions the spherical shape of silver nanoparticles changed to a prolate spheroid with the aspect ratio as high as 3.5 at the laser fluence of 0.6 J/cm2. The developed approach can be employed to control the anisotropy of the glass-metal composites.