Effect of ambient pressures on laser-induced breakdown spectroscopy signals

doi:10.1007/s11467-023-1380-5

Frontiers of Physics

2024, Vol. 19

Issue (4): 42203 https://doi.org/10.1007/s11467-023-1380-5

本期目录

Effect of ambient pressures on laser-induced breakdown spectroscopy signals

Kaifan Zhang¹, Weiran Song¹, Zongyu Hou^1,², Zhe Wang^1,²(

)

¹. State Key Laboratory of Power System Operation and Control, Tsinghua-Rio Tinto Joint Research Centre for Resources, Energy and Sustainable Development, International Joint Laboratory on Low Carbon Clean Energy Innovation, Institute for Carbon Neutrality, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China
². Shanxi Research Institute for Clean Energy, Tsinghua University, Taiyuan 030032, China

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Abstract：

Laser-induced breakdown spectroscopy (LIBS) is regarded as the future superstar for analytical chemistry and widely applied in various fields. Improving the quality of LIBS signal is fundamental to achieving accurate quantification and large-scale commercialization of LIBS. To propose control methods that improve LIBS signal quality, it is essential to have a comprehensive understanding of the influence of key parameters, such as ambient gas pressure, temperature, and sample temperature on LIBS signals. To date, extensive research has been carried out. However, different researchers often yield significantly different experimental results for LIBS, preventing the formation of consistent conclusions. This greatly prevents the understanding of influencing laws of key parameters and the improvement of LIBS quantitative performance. Taking ambient gas pressure as an example, this paper compares the effects of ambient gas pressure under different optimization conditions, reveals the influence of spatiotemporal window caused by inherent characteristics of LIBS signal sources, i.e., intense temporal changes and spatial non-uniformity of laser-induced plasmas, on the impact patterns of key parameters. From the perspective of plasma spatiotemporal evolution, the paper elucidates the influence patterns of ambient gas pressure on LIBS signals, clarifying seemingly contradictory research results in the literature.

Key words： laser-induced breakdown spectroscopy spatiotemporal window pressure condition signal uncertainty plasma modulation

收稿日期: 2023-09-25 出版日期: 2024-01-30

Corresponding Author(s): Zhe Wang

引用本文:

. [J]. Frontiers of Physics, 2024, 19(4): 42203.
Kaifan Zhang, Weiran Song, Zongyu Hou, Zhe Wang. Effect of ambient pressures on laser-induced breakdown spectroscopy signals. Front. Phys. , 2024, 19(4): 42203.

链接本文:

https://academic.hep.com.cn/fop/CN/10.1007/s11467-023-1380-5
https://academic.hep.com.cn/fop/CN/Y2024/V19/I4/42203

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