采用飞秒激光诱导制备彩色金属  

Fabrication of colorful metals with femtosecond laser pulses

作　　者：李国强[1,2] 李晓红[1,2] 杨宏道[1,2] 邱荣[1,2] 黄文浩[3] 

机构地区：[1]西南科技大学理学院激光与光电子实验室,四川绵阳621010 [2]西南科技大学极端条件物质特性实验室；四川绵阳621010 [3]中国科学技术大学工程科学学院,安徽合肥230026

出　　处：《中国光学》2011年第1期72-76,共5页Chinese Optics

基　　金：国家自然科学基金资助项目(No.50875250);四川省教育厅青年基金资助项目(No.08zb006,No.09ZA128);西南科技大学博士研究基金资助项目(No.06zx7113)

摘　　要：采用脉宽为35～65 fs,中心波长为800 nm的飞秒脉冲激光对经抛光的镍片进行表面扫描处理,并在金属表面上制备了彩色镍图案;设置不同的激光扫描速度和能量密度扫描处理不锈钢表面,亦制备了彩色图案。介绍了实验过程,分析了实验结果,扫描电子显微镜(SEM)形貌分析显示,经过飞秒激光扫描处理的金属表面出现了纳米量级的激光诱导周期表面结构(NC-LIPSS),在镍上形成的结构周期约为480～510 nm,在不锈钢上形成的结构周期约为480～540 nm。The polished nickel surface was scanned by a femtosecond laser beam with a pulse width of 35 65 fs and a central wavelength at 800 nm, and the multi-color pattern was obtained. The same processing was done for the stainless steel at different scanning speeds and laser fluences. The experimental results were analyzed by Electron Scanning Microscopy（ESM）. The results show that the surface of the colorful metals are full of laser-induced periodic surface structures covered with nanostructures （ NC-LIPSS）, and the NC-LIPSS period on the nickel surface is about from 480 to 510 nm and that of on the stainless steel is about from 480 to 540 nm.

关 键 词：飞秒激光 激光诱导周期表面结构 彩色金属 表面等离子激元 

分 类 号：TN249[电子电信—物理电子学]