Influence of target temperature on femtosecond laser-ablated brass plasma spectroscopy

doi:10.1088/2058-6272/ab7901

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	Influence of target temperature on femtosecond laser-ablated brass plasma spectroscopy
	J. F. Shao,J. Guo,Q. Y. Wang,A. M. Chen and M. X. Jin
刊名	Plasma Science & Technology
	2020
卷号	22 期号:7 页码:7
ISSN号	1009-0630
DOI	10.1088/2058-6272/ab7901
英文摘要	Spectral intensity, electron temperature and density of laser-induced plasma (LIP) are important parameters for affecting sensitivity of laser-induced breakdown spectroscopy (LIBS). Increasing target temperature is an easy and feasible method to improve the sensitivity. In this paper, a brass target in a temperature range from 25 degrees C to 200 degrees C was ablated to generate the LIP using femtosecond pulse. Time-resolved spectral emission of the femtosecond LIBS was measured under different target temperatures. The results showed that, compared with the experimental condition of 25 degrees C, the spectral intensity of the femtosecond LIP was enhanced with more temperature target. In addition, the electron temperature and density were calculated by Boltzmann equation and Stark broadening, indicating that the changes in the electron temperature and density of femtosecond LIP with the increase of the target temperature were different from each other. By increasing the target temperature, the electron temperature increased while the electron density decreased. Therefore, in femtosecond LIBS, a high-temperature and low-density plasma with high emission can be generated by increasing the target temperature. The increase in the target temperature can improve the resolution and sensitivity of femtosecond LIBS.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/64609]
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 target temperature on femtosecond laser-ablated brass plasma spectroscopy[J]. Plasma Science & Technology,2020,22(7):7.
APA	J. F. Shao,J. Guo,Q. Y. Wang,A. M. Chen and M. X. Jin.(2020).Influence of target temperature on femtosecond laser-ablated brass plasma spectroscopy.Plasma Science & Technology,22(7),7.
MLA	J. F. Shao,J. Guo,Q. Y. Wang,A. M. Chen and M. X. Jin."Influence of target temperature on femtosecond laser-ablated brass plasma spectroscopy".Plasma Science & Technology 22.7(2020):7.