Emission Enhancement in fs + ns Dual-Pulse LIBS of Cu

doi:10.3390/photonics10070783

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	Emission Enhancement in fs + ns Dual-Pulse LIBS of Cu
	J. F. Shao, Y. Zhang and A. M. Chen
刊名	Photonics
	2023
卷号	10 期号:7 页码:9
DOI	10.3390/photonics10070783
英文摘要	Femtosecond (fs) and nanosecond (ns) laser pulses have their own advantages and disadvantages in laser-induced breakdown spectroscopy (LIBS). This paper investigated fs + ns (FN) dual-pulse (DP) LIBS, utilizing the respective advantages of two laser pulses in LIBS. Compared to traditional single ns LIBS, applying a smaller energy fs pulse could effectively improve the LIBS emission. Firstly, this study discussed the spectra of FN DP LIBS with overlapping pulse time-that is, the FN DP inter-pulse delay (DID) was 0 & mu;s. The results showed that the spectra were increased to three times that of a single ns LIBS. Subsequently, the DID between the two pulses was optimized. The results showed that as the DID between the two pulses increased, the spectral emission first increased and then decreased, ultimately remaining unchanged. The optimized DID was approximately 2 & mu;s. Finally, using this optimized DID, the variation of spectral intensity with ns laser energy was discussed in DP LIBS. The spectral enhancement ratio increased from 3 with 0 & mu;s DID to 6 with 2 & mu;s DID. The investigation provides a reference in the application of FN DP LIBS element analysis.
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/181722/67830]
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, Y. Zhang and A. M. Chen. Emission Enhancement in fs + ns Dual-Pulse LIBS of Cu[J]. Photonics,2023,10(7):9.
APA	J. F. Shao, Y. Zhang and A. M. Chen.(2023).Emission Enhancement in fs + ns Dual-Pulse LIBS of Cu.Photonics,10(7),9.
MLA	J. F. Shao, Y. Zhang and A. M. Chen."Emission Enhancement in fs + ns Dual-Pulse LIBS of Cu".Photonics 10.7(2023):9.