纳米颗粒的短脉冲激光烧蚀制备及其非线性光学应用

摘要

本文主要介绍了纳米颗粒的短脉冲激光制备及其在非线性光学领域的应用.短脉冲激光制备纳米颗粒具有纯度高、操作简单和适用性广等优点,所制备的非线性纳米颗粒尺寸分布均匀,粒度小且可调控,在非线性光学材料中有着独特的地位.为了更深入地对此进行研究,本文介绍了纳米颗粒的光学非线性和激光的特点和原理.在此基础上,通过阐述短脉冲激光与物质相互作用的机理,说明了激光制备纳米颗粒所具有的优点,详细分析了制备条件对合成纳米颗粒的影响,并结合激光制备不同的纳米颗粒,介绍当前激光制备各类纳米颗粒的研究现状.激光制备纳米颗粒是一种操作简便、适用性广,且对环境友好的方法.%This paper mainly introduces the fabrication of nanoparticles by short pulsed laser ablation and its applications in the field of non-linear optics. With the characteristics of high purity, simple operation and wide applicability,the non-linear nanoparticles synthesized by short pulsed laser ablation show controllable size and size distribution,which has an unique role in non-linear optical materials. In order to further summarize this research area, this paper first introduces the optical non-linearity of the nanoparticles and the working principles of the pulsed lasers. The mechanism of interaction between pulsed laser and material is described, followed by analyzing the advantages of as-synthesized nanoparticles. The effects of processing parameters are also reviewed in detail. The current research status of various laser ablated nanoparticles is established for preparing different nanoparticles by pulsed laser ablation.Synthesis of nanoparticles by pulsed laser ablation is significantly considered as an environmental-friendly and versatile method.