Way-out for laser-induced breakdown spectroscopy

Hou, Zongyu; Jeong, Sungho; Deguchi, Yoshihiro; Wang, Zhe

doi:10.1088/2058-6272/ab95f7

Cited by 25 publications

(8 citation statements)

References 26 publications

(38 reference statements)

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“…It uses the pulse laser as the excitation source to ablate the sample to be tested to generate laser plasma, and detects the emission spectrum of the plasma through a spectrometer, analyzing the spectrum to obtain the element type and content information of the sample to be tested. [7][8][9] It has the unique advantages of simultaneous detection of multiple elements, simple structure, fast detection and analysis speed, and is not affected by the sample state (solid, liquid, and gas), [10][11][12] and has always received a lot of attention. [13][14][15][16][17][18][19][20] Especially in water pollution and soil monitoring, nuclear material testing, food testing, deep sea exploration, and other elds, it has great application prospects.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity improvement of laser-induced breakdown spectroscopy to detect heavy metals in water by Tesla coil discharge

Wang,

Chen,

Gao

2024

J. Anal. At. Spectrom.

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Section: Introductionmentioning

confidence: 99%

Sensitivity improvement of laser-induced breakdown spectroscopy to detect heavy metals in water by Tesla coil discharge

Wang,

Chen,

Gao

2024

J. Anal. At. Spectrom.

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“…Laser-induced breakdown spectroscopy (LIBS) is an analysis technique based on atomic emission spectroscopy of laserinduced plasma [1][2][3][4][5]. After decades of development, LIBS technology has become a very popular and effective element analysis method [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Influence of distance from lens to sample surface on spectral sensitivity of femtosecond laser-induced breakdown spectroscopy with NaCl water film

et al. 2022

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Increasing the emission intensity of laser-induced breakdown spectroscopy (LIBS) is an effective way to improve the sensitivity of LIBS technology to elements analysis in liquid samples. In this work, the influence of the distance from lens to sample surface (DFLS) on the spectral emission of femtosecond laser-induced plasma of NaCl water film was studied by measuring Na atomic line. The results showed that the emission intensity of the spectral line presented the phenomenon of double peaks with an increase in the DFLS. The position for the highest spectral intensity was not geometric focal point of focusing lens, but was located in front of the geometric focal point. In addition, we carried out quantitative analysis on Na element with different concentrations, showing a calibration curve of Na element, and calculating limit of detection (LOD) and relative standard deviation (RSD) for different DFLSs. Subsequently, the changes in the LOD and RSD with the DFLS are discussed. With the increase of the DFLS, the LOD and RSD were greatly reduced. At the DFLS of 99.0 mm, the line intensity was highest, and the LOD and RSD were better. Therefore, it can be confirmed that femtosecond LIBS of water film can be optimized by changing the DFLS, the experiment shows great potential in real-time water quality monitoring.

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“…Laser-induced breakdown spectroscopy (LIBS) that is a good technique for material identification has been widely accepted as a tool in spectral analysis [1][2][3][4][5]. In the technique, a high power laser pulse is focused onto the surface of a sample to produce plasma, emitting spectral lines.…”

Section: Introductionmentioning

confidence: 99%

Comparison of sample temperature effect on femtosecond and nanosecond laser-induced breakdown spectroscopy

Liu

Chen

et al. 2021

Plasma Sci. Technol.

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In this paper, we investigated the emission spectra of plasmas produced from femtosecond and nanosecond laser ablations at different target temperatures in air. A brass was selected as ablated target of the experiment. The results indicated that spectral emission intensity and plasma temperature showed similar trend for femtosecond and nanosecond lasers, and the two parameters were improved by increasing the sample temperature in both cases. Moreover, the temperature of nanosecond laser-excited plasma was higher compared with that of femtosecond laser-excited plasma, and the increase of the plasma temperature in the case of nanosecond laser was more evident. In addition, there was a significant difference in electron density between femtosecond and nanosecond laser-induced plasmas. The electron density for femtosecond laser decreased with increasing the target temperature, while for nanosecond laser, the electron density was almost unchanged at different sample temperatures.

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Way-out for laser-induced breakdown spectroscopy

Cited by 25 publications

References 26 publications

Sensitivity improvement of laser-induced breakdown spectroscopy to detect heavy metals in water by Tesla coil discharge

Sensitivity improvement of laser-induced breakdown spectroscopy to detect heavy metals in water by Tesla coil discharge

Influence of distance from lens to sample surface on spectral sensitivity of femtosecond laser-induced breakdown spectroscopy with NaCl water film

Comparison of sample temperature effect on femtosecond and nanosecond laser-induced breakdown spectroscopy

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