Influence of distance between focusing lens and sample surface on femtosecond laser-induced Cu plasma

doi:10.1016/j.ijleo.2020.165137

CIOMP OpenIR

	Influence of distance between focusing lens and sample surface on femtosecond laser-induced Cu plasma
	J. F. Shao,J. Guo,Q. Y. Wang,A. M. Chen and M. X. Jin
	2020
发表期刊	Optik
ISSN	0030-4026
卷号	220 页码:8
摘要	It is important to optimize emission intensity of laser-induced breakdown spectroscopy (LIBS) for improving detection sensitivity. This paper investigates the influence of the distance between focusing lens and sample surface (DBFS) on the emission line intensity and electron temperature of Cu plasma induced by femtosecond pulse laser. The results indicate that the line intensities first increase, and then drop with an increase in the DBFS. The position for obtaining highest line intensity is not the geometrical focus of the converging lens, but a short distance near the geometrical focus towards the converging lens. And the strongest emission position moves toward the converging lens as femtosecond laser energy increases. In addition, the electron temperature is calculated by using the Cu (I) lines for different DBFSs and energies. It is found that the change in the electron temperature with the DBFS is similar to that in the spectral intensity. Therefore, changing the distance is an effective way to optimize the spectral intensity in femtosecond-LIBS.
DOI	10.1016/j.ijleo.2020.165137
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/181722/64606
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	J. F. Shao,J. Guo,Q. Y. Wang,A. M. Chen and M. X. Jin. Influence of distance between focusing lens and sample surface on femtosecond laser-induced Cu plasma[J]. Optik,2020,220:8.
APA	J. F. Shao,J. Guo,Q. Y. Wang,A. M. Chen and M. X. Jin.(2020).Influence of distance between focusing lens and sample surface on femtosecond laser-induced Cu plasma.Optik,220,8.
MLA	J. F. Shao,J. Guo,Q. Y. Wang,A. M. Chen and M. X. Jin."Influence of distance between focusing lens and sample surface on femtosecond laser-induced Cu plasma".Optik 220(2020):8.

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
Influence of distanc（2742KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载