Issue 6, 2021

Influence of spark discharge on Al(i) and AlO spectra in femtosecond laser-induced aluminum plasmas

Abstract

In this study, the influence of spark discharge on Al(I) and AlO emission intensities in laser-induced breakdown spectroscopy (LIBS) is investigated experimentally. A femtosecond pulsed laser is used to excite an aluminum sample and produces aluminum plasma between the sample surface and a discharge electrode. The plasma triggers high-voltage spark discharge (SD), enhancing the spectral intensity of the aluminum plasma. The emission of Al atomic lines and AlO bands in the case of the SD is stronger than that in the case using femtosecond LIBS alone. And the spectral intensities of Al(I) lines increase continuously as the discharge voltage increases from 0 kV to 2.0 kV, while AlO molecular emission first increases and then almost remains unchanged. Finally, the vibration temperature of the AlO radical is calculated by fitted AlO emission data, and the vibration temperature of the AlO radical hardly changes with the increase of the discharge voltage. The results indicate that the atomic spectral intensity is sensitive to the discharge voltage, but not the molecular band emission in femtosecond LIBS.

Graphical abstract: Influence of spark discharge on Al(i) and AlO spectra in femtosecond laser-induced aluminum plasmas

Article information

Article type
Technical Note
Submitted
09 Feb 2021
Accepted
09 Mar 2021
First published
21 Apr 2021

J. Anal. At. Spectrom., 2021,36, 1112-1117

Influence of spark discharge on Al(I) and AlO spectra in femtosecond laser-induced aluminum plasmas

Q. Wang, A. Chen, X. Zeng, Y. Chen, S. Li, Y. Jiang, X. Gao and M. Jin, J. Anal. At. Spectrom., 2021, 36, 1112 DOI: 10.1039/D1JA00050K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements