Accuracy improvement of quantitative analysis by spatial confinement in laser-induced breakdown spectroscopy

L. B. Guo, Z. Q. Hao, M. Shen, W. Xiong, X. N. He, Z. Q. Xie, M. Gao, X. Y. Li, X. Y. Zeng, Y. F. Lu

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

To improve the accuracy of quantitative analysis in laser-induced breakdown spectroscopy, the plasma produced by a Nd:YAG laser from steel targets was confined by a cavity. A number of elements with low concentrations, such as vanadium (V), chromium (Cr), and manganese (Mn), in the steel samples were investigated. After the optimization of the cavity dimension and laser fluence, significant enhancement factors of 4.2, 3.1, and 2.87 in the emission intensity of V, Cr, and Mn lines, respectively, were achieved at a laser fluence of 42.9 J/cm2 using a hemispherical cavity (diameter: 5 mm). More importantly, the correlation coefficient of the V I 440.85/Fe I 438.35 nm was increased from 0.946 (without the cavity) to 0.981 (with the cavity); and similar results for Cr I 425.43/Fe I 425.08 nm and Mn I 476.64/Fe I 492.05 nm were also obtained. Therefore, it was demonstrated that the accuracy of quantitative analysis with low concentration elements in steel samples was improved, because the plasma became uniform with spatial confinement. The results of this study provide a new pathway for improving the accuracy of quantitative analysis of LIBS.

Original languageEnglish (US)
Pages (from-to)18188-18195
Number of pages8
JournalOptics Express
Volume21
Issue number15
DOIs
StatePublished - Jul 29 2013

Fingerprint

Spatial Analysis
laser-induced breakdown spectroscopy
Steel
Chromium
Manganese
quantitative analysis
Spectrum Analysis
Lasers
cavities
manganese
chromium
steels
Vanadium
Solid-State Lasers
low concentrations
fluence
correlation coefficients
vanadium
lasers
YAG lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Accuracy improvement of quantitative analysis by spatial confinement in laser-induced breakdown spectroscopy. / Guo, L. B.; Hao, Z. Q.; Shen, M.; Xiong, W.; He, X. N.; Xie, Z. Q.; Gao, M.; Li, X. Y.; Zeng, X. Y.; Lu, Y. F.

In: Optics Express, Vol. 21, No. 15, 29.07.2013, p. 18188-18195.

Research output: Contribution to journalArticle

Guo, LB, Hao, ZQ, Shen, M, Xiong, W, He, XN, Xie, ZQ, Gao, M, Li, XY, Zeng, XY & Lu, YF 2013, 'Accuracy improvement of quantitative analysis by spatial confinement in laser-induced breakdown spectroscopy', Optics Express, vol. 21, no. 15, pp. 18188-18195. https://doi.org/10.1364/OE.21.018188
Guo, L. B. ; Hao, Z. Q. ; Shen, M. ; Xiong, W. ; He, X. N. ; Xie, Z. Q. ; Gao, M. ; Li, X. Y. ; Zeng, X. Y. ; Lu, Y. F. / Accuracy improvement of quantitative analysis by spatial confinement in laser-induced breakdown spectroscopy. In: Optics Express. 2013 ; Vol. 21, No. 15. pp. 18188-18195.
@article{440a22df259549bb8b5ba5385d6baabf,
title = "Accuracy improvement of quantitative analysis by spatial confinement in laser-induced breakdown spectroscopy",
abstract = "To improve the accuracy of quantitative analysis in laser-induced breakdown spectroscopy, the plasma produced by a Nd:YAG laser from steel targets was confined by a cavity. A number of elements with low concentrations, such as vanadium (V), chromium (Cr), and manganese (Mn), in the steel samples were investigated. After the optimization of the cavity dimension and laser fluence, significant enhancement factors of 4.2, 3.1, and 2.87 in the emission intensity of V, Cr, and Mn lines, respectively, were achieved at a laser fluence of 42.9 J/cm2 using a hemispherical cavity (diameter: 5 mm). More importantly, the correlation coefficient of the V I 440.85/Fe I 438.35 nm was increased from 0.946 (without the cavity) to 0.981 (with the cavity); and similar results for Cr I 425.43/Fe I 425.08 nm and Mn I 476.64/Fe I 492.05 nm were also obtained. Therefore, it was demonstrated that the accuracy of quantitative analysis with low concentration elements in steel samples was improved, because the plasma became uniform with spatial confinement. The results of this study provide a new pathway for improving the accuracy of quantitative analysis of LIBS.",
author = "Guo, {L. B.} and Hao, {Z. Q.} and M. Shen and W. Xiong and He, {X. N.} and Xie, {Z. Q.} and M. Gao and Li, {X. Y.} and Zeng, {X. Y.} and Lu, {Y. F.}",
year = "2013",
month = "7",
day = "29",
doi = "10.1364/OE.21.018188",
language = "English (US)",
volume = "21",
pages = "18188--18195",
journal = "Optics Express",
issn = "1094-4087",
publisher = "The Optical Society",
number = "15",

}

TY - JOUR

T1 - Accuracy improvement of quantitative analysis by spatial confinement in laser-induced breakdown spectroscopy

AU - Guo, L. B.

AU - Hao, Z. Q.

AU - Shen, M.

AU - Xiong, W.

AU - He, X. N.

AU - Xie, Z. Q.

AU - Gao, M.

AU - Li, X. Y.

AU - Zeng, X. Y.

AU - Lu, Y. F.

PY - 2013/7/29

Y1 - 2013/7/29

N2 - To improve the accuracy of quantitative analysis in laser-induced breakdown spectroscopy, the plasma produced by a Nd:YAG laser from steel targets was confined by a cavity. A number of elements with low concentrations, such as vanadium (V), chromium (Cr), and manganese (Mn), in the steel samples were investigated. After the optimization of the cavity dimension and laser fluence, significant enhancement factors of 4.2, 3.1, and 2.87 in the emission intensity of V, Cr, and Mn lines, respectively, were achieved at a laser fluence of 42.9 J/cm2 using a hemispherical cavity (diameter: 5 mm). More importantly, the correlation coefficient of the V I 440.85/Fe I 438.35 nm was increased from 0.946 (without the cavity) to 0.981 (with the cavity); and similar results for Cr I 425.43/Fe I 425.08 nm and Mn I 476.64/Fe I 492.05 nm were also obtained. Therefore, it was demonstrated that the accuracy of quantitative analysis with low concentration elements in steel samples was improved, because the plasma became uniform with spatial confinement. The results of this study provide a new pathway for improving the accuracy of quantitative analysis of LIBS.

AB - To improve the accuracy of quantitative analysis in laser-induced breakdown spectroscopy, the plasma produced by a Nd:YAG laser from steel targets was confined by a cavity. A number of elements with low concentrations, such as vanadium (V), chromium (Cr), and manganese (Mn), in the steel samples were investigated. After the optimization of the cavity dimension and laser fluence, significant enhancement factors of 4.2, 3.1, and 2.87 in the emission intensity of V, Cr, and Mn lines, respectively, were achieved at a laser fluence of 42.9 J/cm2 using a hemispherical cavity (diameter: 5 mm). More importantly, the correlation coefficient of the V I 440.85/Fe I 438.35 nm was increased from 0.946 (without the cavity) to 0.981 (with the cavity); and similar results for Cr I 425.43/Fe I 425.08 nm and Mn I 476.64/Fe I 492.05 nm were also obtained. Therefore, it was demonstrated that the accuracy of quantitative analysis with low concentration elements in steel samples was improved, because the plasma became uniform with spatial confinement. The results of this study provide a new pathway for improving the accuracy of quantitative analysis of LIBS.

UR - http://www.scopus.com/inward/record.url?scp=84880960391&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84880960391&partnerID=8YFLogxK

U2 - 10.1364/OE.21.018188

DO - 10.1364/OE.21.018188

M3 - Article

C2 - 23938689

AN - SCOPUS:84880960391

VL - 21

SP - 18188

EP - 18195

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 15

ER -