Effects of Ambient Air Pressure on Femtosecond Laser Induced Periodic Ripple Structure on Chromium Films

doi:10.3788/gzxb20184707.0714001

CIOMP OpenIR

	Effects of Ambient Air Pressure on Femtosecond Laser Induced Periodic Ripple Structure on Chromium Films
	Liu, Qi; Zhang, Nan; Yang, Jian-Jun
	2018
发表期刊	Guangzi Xuebao/Acta Photonica Sinica
ISSN	10044213
卷号	47 期号:7
摘要	The formation of one dimensional periodic subwavelength (~250 nm) ripple structures on the surface of Si-based Cr film was investigated by irradiation of blue femtosecond laser pulses (1 kHz, 50 fs, 400 nm) under different ambient air pressures of 105 Pa (or 1atm) and 10-3 Pa. The effects of the experimental parameters such as the incident laser energy fluence, the sample scanning speed and the film thickness, on the development of the surface ripple structures were compared. The results demonstrate that the quality of the surface structures can be effectively improved either by the low air pressure of 10-3 Pa or by reducing the thickness of Cr film (100 ~25 nm), however, the uneven ablation may be appeared when the Cr film is too thin ( 25 nm). Moreover, with decreasing the laser energy fluence or increasing the scanning speed, the spatial period of the ripple structures tends to become smaller, accompanied by the nanowires growth inside the grooves of the ripple structures. 2018, Science Press. All right reserved.
关键词	Periodic structures Atmospheric pressure Chromium Femtosecond lasers Laser pulses Thin films Ultrafast lasers
DOI	10.3788/gzxb20184707.0714001
收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/60645
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	Liu, Qi,Zhang, Nan,Yang, Jian-Jun. Effects of Ambient Air Pressure on Femtosecond Laser Induced Periodic Ripple Structure on Chromium Films[J]. Guangzi Xuebao/Acta Photonica Sinica,2018,47(7).
APA	Liu, Qi,Zhang, Nan,&Yang, Jian-Jun.(2018).Effects of Ambient Air Pressure on Femtosecond Laser Induced Periodic Ripple Structure on Chromium Films.Guangzi Xuebao/Acta Photonica Sinica,47(7).
MLA	Liu, Qi,et al."Effects of Ambient Air Pressure on Femtosecond Laser Induced Periodic Ripple Structure on Chromium Films".Guangzi Xuebao/Acta Photonica Sinica 47.7(2018).

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
Effects of Ambient A（3470KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载