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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 13 — May. 1, 2009
  • pp: 2551–2558

Detection of trace phosphorus in steel using laser-induced breakdown spectroscopy combined with laser-induced fluorescence

X. K. Shen, H. Wang, Z. Q. Xie, Y. Gao, H. Ling, and Y. F. Lu  »View Author Affiliations


Applied Optics, Vol. 48, Issue 13, pp. 2551-2558 (2009)
http://dx.doi.org/10.1364/AO.48.002551


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Abstract

Monitoring of light-element concentration in steel is very important for quality assurance in the steel industry. In this work, detection in open air of trace phosphorus (P) in steel using laser-induced breakdown spectroscopy (LIBS) combined with laser-induced fluorescence (LIF) has been investigated. An optical parametric oscillator wavelength-tunable laser was used to resonantly excite the P atoms within plasma plumes generated by a Q-switched Nd : YAG laser. A set of steel samples with P concentrations from 3.9 to 720 parts in 10 6 ( ppm ) were analyzed using LIBS-LIF at wavelengths of 253.40 and 253.56 nm for resonant excitation of P atoms and fluorescence lines at wavelengths of 213.55 and 213.62 nm . The calibration curves were measured to determine the limit of detection for P in steel, which is estimated to be around 0.7 ppm . The results demonstrate the potential of LIBS-LIF to meet the requirements for on-line analyses in open air in the steel industry.

© 2009 Optical Society of America

OCIS Codes
(140.3440) Lasers and laser optics : Laser-induced breakdown
(300.2140) Spectroscopy : Emission
(300.2530) Spectroscopy : Fluorescence, laser-induced
(300.6170) Spectroscopy : Spectra
(300.6365) Spectroscopy : Spectroscopy, laser induced breakdown

ToC Category:
Spectroscopy

History
Original Manuscript: February 11, 2009
Manuscript Accepted: March 13, 2009
Published: April 27, 2009

Citation
X. K. Shen, H. Wang, Z. Q. Xie, Y. Gao, H. Ling, and Y. F. Lu, "Detection of trace phosphorus in steel using laser-induced breakdown spectroscopy combined with laser-induced fluorescence," Appl. Opt. 48, 2551-2558 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-13-2551

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