Year: 2015
Author: Dong Liu, Chuan-Song Chen, Xun Gao, Jing-Quan Lin, Bao-Yuan Man, Mei Liu, Yan-Na Su, Fei-Fei Li
Journal of Atomic and Molecular Sciences, Vol. 6 (2015), Iss. 4 : pp. 272–282
Abstract
The femtosecond laser ablation process and induced breakdown spectroscopy of transition metal Ti in air background has been investigated systematically. The ablation process is simulated by means of a three-dimensional two temperature model (3D-TTM). The time-resolved spectroscopy is employed to determine the characteristics of plasma during its evolution. The time-of-flight spectroscopy (TOFS) is also used to characterize the plasma expansion. The evolution behaviors of the plasma and its spectral characteristics have been analyzed as a function of pressure. It is shown that the component, expansion behavior and characteristics of the plasma have strong pressure dependences. The results are discussed in terms of the interaction mechanisms between ambient air and plasma species.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/jams.090915.101215a
Journal of Atomic and Molecular Sciences, Vol. 6 (2015), Iss. 4 : pp. 272–282
Published online: 2015-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 11
Keywords: Femtosecond laser ablation Two temperature model Laser induced breakdown spectroscopy.