飞秒激光诱导周期性表面结构及其应用

发布时间：2018-12-18 10:59

【摘要】：近年来,飞秒激光微纳加工技术引起了科学界的广泛关注.飞秒激光脉冲凭借其超短脉宽及超强的瞬时功率,较传统的激光加工有着明显的优势:几乎可以加工任何材料,非接触加工,非热加工,加工精度高,能够加工亚微米级结构和三维复杂结构,加工过程耗能低.飞秒激光加工材料的过程中会产生周期性的表面结构,这些表面结构会对材料的表面性能产生明显的影响,并且在国防、医疗、高端制造等多个领域具有巨大的应用潜力.因此,国内外研究人员对飞秒激光诱导周期性表面结构进行了系统深入的理论研究和实验研究.本文简要阐述了飞秒激光的基本特点及飞秒激光微纳加工的独特优势,对近年来关于飞秒激光诱导周期性表面结构(laser induced periodic surface structure,LIPSS)的理论与实验研究进行了综述,并阐述了这种周期性表面结构对材料表面浸润特性、光学特性以及表面拉曼增强的影响和研究进展,最后对LIPSS未来的研究方向进行了预测和展望.
[Abstract]:In recent years, femtosecond laser microfabrication technology has attracted wide attention of the scientific community. Femtosecond laser pulse has obvious advantages over traditional laser processing because of its ultrashort pulse width and super strong instantaneous power: it can process almost any material, non-contact processing, non-thermal processing, and high precision. It can process sub-micron structure and three-dimensional complex structure, and the process energy consumption is low. In the process of femtosecond laser processing of materials, periodic surface structures will be produced, which will have an obvious impact on the surface properties of materials, and have great application potential in many fields, such as national defense, medical treatment, high-end manufacturing and so on. Therefore, researchers at home and abroad have systematically and experimentally studied the periodic surface structure induced by femtosecond laser. In this paper, the basic characteristics of femtosecond laser and the unique advantages of femtosecond laser microfabrication are briefly described. The theoretical and experimental studies on the periodic surface structure (laser induced periodic surface structure,LIPSS induced by femtosecond laser in recent years are reviewed. The effects of the periodic surface structure on the surface wetting characteristics, optical properties and surface Raman enhancement of the materials are described. Finally, the future research direction of LIPSS is predicted and prospected.
【作者单位】：北京理工大学机械与车辆学院激光微纳制造研究所;
【基金】：国家重点基础研究发展计划(2011CB013000) 国家自然科学基金(91323301,51322511) 教育部科技创新工程重大项目培育资金(708018)资助
【分类号】：TN249

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