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Observation of Primary and Secondary Enhancement of Emission Spectra from Spatially Confined Laser-induced Aluminum Plasmas
Xu, Boping1; Lei, Bingying1; Wang, Jing1; Liu, Yinghua1; Xing, Yufei2; Xie, Xiaotao2; Zhang, Wenfu1; Tang, Jie1; Wang, Yishan1; Zhao, Wei1; Duan, Yixiang1
作者部门瞬态光学研究室
2022-04
发表期刊IEEE Photonics Journal
ISSN19430655
卷号14期号:2
产权排序1
摘要

In this study, four cylindrical cavities with diameters of more than 10 mm are utilized to confine aluminum plasmas to improve the signal intensities of laser-induced breakdown spectroscopy (LIBS). Primary and secondary enhancements of spectra are observed. This phenomenon is attributed to the fact that plasmas are compressed into a smaller core area with denser population of excited atoms by reflected shockwaves more than one time. The delay time for both primary and secondary signal enhancements is postponed with decreasing the laser energy or increasing the cavity diameter. Relative standard deviations (RSDs) of spectra signal in different experimental conditions are discussed to illustrate the uncertainties of measurement. In addition, enhancement factor, signal-to-background ratio (SBR) and signal-to-noise ratio (SNR) are also examined in the two cases. The fast images of plasma plume further prove the enhancements of emission intensity, as well as its RSD. Author

关键词LIBS spatial confinement primary and secondary enhancements
DOI10.1109/JPHOT.2022.3159720
收录类别SCI ; EI
语种英语
WOS记录号WOS:000778903900009
出版者Institute of Electrical and Electronics Engineers Inc.
EI入藏号20221211818051
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/95787
专题瞬态光学研究室
作者单位1.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, 53046 Xi'an, Shaanxi, China;
2.School of Physics and Information Technology, Shaanxi Normal University, 12401 Xi'an, Shaanxi, China
推荐引用方式
GB/T 7714
Xu, Boping,Lei, Bingying,Wang, Jing,et al. Observation of Primary and Secondary Enhancement of Emission Spectra from Spatially Confined Laser-induced Aluminum Plasmas[J]. IEEE Photonics Journal,2022,14(2).
APA Xu, Boping.,Lei, Bingying.,Wang, Jing.,Liu, Yinghua.,Xing, Yufei.,...&Duan, Yixiang.(2022).Observation of Primary and Secondary Enhancement of Emission Spectra from Spatially Confined Laser-induced Aluminum Plasmas.IEEE Photonics Journal,14(2).
MLA Xu, Boping,et al."Observation of Primary and Secondary Enhancement of Emission Spectra from Spatially Confined Laser-induced Aluminum Plasmas".IEEE Photonics Journal 14.2(2022).
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