Formation of controllable 1D and 2D periodic surface structures on cobalt by femtosecond double pulse laser irradiation

doi:10.1063/1.5103216

CIOMP OpenIR

	Formation of controllable 1D and 2D periodic surface structures on cobalt by femtosecond double pulse laser irradiation
	S.A.Jalil; J.J.Yang; M.ElKabbash; C.Cong; C.L.Guo
	2019
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	115 期号:3 页码:5
摘要	Controlling the surface morphology at the subwavelength scale is one of the cornerstones of modern nanophotonics. Femtosecond laser-induced surface structuring is a viable technique for the large-scale formation of nano- and microscale structures. A typical example is the formation of one-dimensional laser-induced periodic surface structures (LIPSSs), which can lead to strong modifications of optical and wetting properties of the material surface. Creating two-dimensional (2D) patterned structures, however, is a more challenging and rewarding task. Here, we demonstrate a single step method for fabricating various subwavelength structures on the cobalt (Co) surface using different laser fluences (0.12-0.24J/cm(2)) and time delay (0-30 ps) between double pulses. More importantly, we can control the geometry and organization of the formed structures demonstrating spherical, triangular, rhombic, and high spatial frequency LIPSSs using two temporally delayed orthogonally polarized femtosecond laser beams. We show that the laser fluence and delay time between the two beams are the controlling parameters for realizing the different surface morphologies. We provide a numerically supported, phenomenological model to explain the formed 2D structures. Our model employs elements from both the scattered surface-wave interference and the self-organization theories that are commonly used to explain uniform surface structures.
关键词	large-area,semiconductors,lithography,dynamics,ablation,Physics
DOI	10.1063/1.5103216
URL	查看原文
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63316
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	S.A.Jalil,J.J.Yang,M.ElKabbash,et al. Formation of controllable 1D and 2D periodic surface structures on cobalt by femtosecond double pulse laser irradiation[J]. Applied Physics Letters,2019,115(3):5.
APA	S.A.Jalil,J.J.Yang,M.ElKabbash,C.Cong,&C.L.Guo.(2019).Formation of controllable 1D and 2D periodic surface structures on cobalt by femtosecond double pulse laser irradiation.Applied Physics Letters,115(3),5.
MLA	S.A.Jalil,et al."Formation of controllable 1D and 2D periodic surface structures on cobalt by femtosecond double pulse laser irradiation".Applied Physics Letters 115.3(2019):5.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Formation of control（2301KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载