Femtosecond laser induced periodic surface structures for the enhancement of field emission properties of tungsten
文献类型：期刊论文
| 作者 | M.Akram; S.Bashir; S.A.Jalil; M.ElKabbash; F.Aumayr |
| 刊名 | Optical Materials Express
 |
| 出版日期 | 2019 |
| 卷号 | 9期号:7页码:3183-3192 |
| 关键词 | electron-emission,nanowires,growth,array,Materials Science,Optics |
| ISSN号 | 2159-3930 |
| DOI | 10.1364/ome.9.003183 |
| 英文摘要 | Direct femtosecond laser ablation enables the maskless fabrication of nano- and micro-scale structures on variety of materials. A typical example is the formation of femtosecond Laser Induced Periodic Surface Structures (fs-LIPSSs), which can lead to strong modification in electrical, optical, wetting, and field emission properties of materials. Here, we study the field emission properties of fs-LIPSSs. We created fs-LIPSSs and fs-LIPSSs covered with nano-and micro-scale structures at different laser fluences on Tungsten (W) and showed that these structures offer significant enhancement in electron field emission properties. We provide a phenomenological model to explain the enhancement of electron emission parameters. The enhancement in the field emission properties of laser irradiated W is explained based on the convergence of electric field lines at the ridges of the fs-LIPSSs and fs-LIPSSs covered with nanoscale structures, which in turn, enhances the local field intensity and the electron emission parameters. The direct fabrication of 1D subwavelength structures is an important step towards the creation of low-cost cathodes for various potential applications. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/63482]  |
| 专题 | 长春光学精密机械与物理研究所_中科院长春光机所知识产出 |
| 推荐引用方式 GB/T 7714 | M.Akram,S.Bashir,S.A.Jalil,et al. Femtosecond laser induced periodic surface structures for the enhancement of field emission properties of tungsten[J]. Optical Materials Express,2019,9(7):3183-3192. |
| APA | M.Akram,S.Bashir,S.A.Jalil,M.ElKabbash,&F.Aumayr.(2019).Femtosecond laser induced periodic surface structures for the enhancement of field emission properties of tungsten.Optical Materials Express,9(7),3183-3192. |
| MLA | M.Akram,et al."Femtosecond laser induced periodic surface structures for the enhancement of field emission properties of tungsten".Optical Materials Express 9.7(2019):3183-3192. |
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