烧蚀
制作
飞秒
材料科学
激光烧蚀
纳米颗粒
激光器
光电子学
纳米技术
光学
医学
物理
工程类
病理
航空航天工程
替代医学
作者
Xiangjing Guo,Haiying Song,Yachao Li,Peng Wang,Shibing Liu
标识
DOI:10.1016/j.optmat.2022.112817
摘要
In this paper, the silicon carbide (SiC) nanoparticle colloidal solution is obtained by using the femtosecond (fs) laser ablation in deionized water. The spherical nanoparticles are uniform in size with an average diameter of 2.84 nm analyzed by transmission electron microscope (TEM). X-ray diffraction patterns (XRD) show that the crystal structure of the nanoparticles is still 4H–SiC. Absorption spectrum shows strong absorption of SiC colloidal solution in ultraviolet region. The optical nonlinearity of SiC nanoparticles colloidal solution is investigated by the Z scan experiment, it is found that the SiC nanoparticles have reverse saturation absorption characteristics. The nonlinear absorption coefficient β is measured to be about 3 × 10 −13 m/W. • Fabrication of SiC Nanoparticles using Femtosecond Laser Liquid Phase Ablation. • 4H–SiC spherical nanoparticles with an average diameter of 2.48 nm. • Reverse saturation absorption characteristics of SiC nanoparticles solution.
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