Design and fabrication of dual-scale broadband antireflective structures on metal surfaces by using nanosecond and femtosecond lasers | |
Lou, Rui2,3,4; Zhang, Guodong1; Li, Guangying2; Li, Xuelong1; Liu, Qing5; Cheng, Guanghua1 | |
刊名 | Micromachines |
2020 | |
卷号 | 11期号:1 |
关键词 | antireflective surfaces nanosecond laser femtosecond laser micro-nano hybrid structures broadband spectrum |
ISSN号 | 2072666X |
DOI | 10.3390/mi11010020 |
产权排序 | 1 |
英文摘要 | Antireflective surfaces, with their great potential applications, have attracted tremendous attention and have been the subject of extensive research in recent years. However, due to the significant optical impedance mismatch between a metal surface and free space, it is still a challenging issue to realize ultralow reflectance on a metal surface. To address this issue, we propose a two-step strategy for constructing antireflective structures on a Ti-6Al-4V (TC4) surface using nanosecond and femtosecond pulsed lasers in combination. By controlling the parameters of the nanosecond laser, microgrooves are first scratched on the TC4 surface to reduce the interface reflection. Then, the femtosecond laser is focused onto the sample surface with orthogonal scanning to induce deep air holes and nanoscale structures, which eectively enhances the broadband absorption. The antireflection mechanism of the dual-scale structures is discussed regarding morphological characterization and hemispherical reflectance measurements. Finally, the modified sample surface covered with micro-nano hybrid structures is characterized by an average reflectance of 3.1% over the wavelengths ranging from 250 nm to 2250 nm. © 2019 The Author(s). |
语种 | 英语 |
出版者 | MDPI AG, Postfach, Basel, CH-4005, Switzerland |
WOS记录号 | WOS:000514309100020 |
内容类型 | 期刊论文 |
源URL | [http://ir.opt.ac.cn/handle/181661/93258] |
专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 |
通讯作者 | Cheng, Guanghua |
作者单位 | 1.Electronic Information College, Center of Optical Imagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an, Shaanxi; 710072, China; 2.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; 3.University of Chinese Academy of Sciences, Beijing; 100049, China; 4.School of Future Technology, University of Chinese Academy of Sciences, Beijing; 100049, China; 5.Zhejiang Wanli University, Ningbo; 315100, China |
推荐引用方式 GB/T 7714 | Lou, Rui,Zhang, Guodong,Li, Guangying,et al. Design and fabrication of dual-scale broadband antireflective structures on metal surfaces by using nanosecond and femtosecond lasers[J]. Micromachines,2020,11(1). |
APA | Lou, Rui,Zhang, Guodong,Li, Guangying,Li, Xuelong,Liu, Qing,&Cheng, Guanghua.(2020).Design and fabrication of dual-scale broadband antireflective structures on metal surfaces by using nanosecond and femtosecond lasers.Micromachines,11(1). |
MLA | Lou, Rui,et al."Design and fabrication of dual-scale broadband antireflective structures on metal surfaces by using nanosecond and femtosecond lasers".Micromachines 11.1(2020). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论