OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 30 — Oct. 20, 2003
  • pp: 6022–6028

Conditional data processing for single-shot spectral analysis by use of laser-induced breakdown spectroscopy

Jorge E. Carranza, Kenjiro Iida, and David W. Hahn  »View Author Affiliations


Applied Optics, Vol. 42, Issue 30, pp. 6022-6028 (2003)
http://dx.doi.org/10.1364/AO.42.006022


View Full Text Article

Enhanced HTML    Acrobat PDF (128 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Schemes of conditional data processing are evaluated based on either the peak-to-base ratio or the signal-to-noise ratio as a metric for analyte detection in single-shot laser-induced breakdown spectra. The analyte signal investigated is the 288.1-nm Si i emission line provided by an aerosol stream of monodisperse 2.5-µm-sized silica microspheres. Both the Si emission line and a spectral region corresponding to continuum emission are used to evaluate the statistical distribution of spectral noise. The probability of false hits is determined by evaluating various conditional processing thresholds. As the detection threshold increases, the rate of detected silica particle hits decreases along with the expected fraction of false-particle hits (i.e., spectral noise). For all threshold values the signal-to-noise ratio is found to provide a more robust metric for single-shot analyte detection compared with the peak-to-base ratio.

© 2003 Optical Society of America

OCIS Codes
(140.3440) Lasers and laser optics : Laser-induced breakdown
(300.0300) Spectroscopy : Spectroscopy
(300.6210) Spectroscopy : Spectroscopy, atomic

History
Original Manuscript: February 10, 2003
Revised Manuscript: June 16, 2003
Published: October 20, 2003

Citation
Jorge E. Carranza, Kenjiro Iida, and David W. Hahn, "Conditional data processing for single-shot spectral analysis by use of laser-induced breakdown spectroscopy," Appl. Opt. 42, 6022-6028 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-30-6022


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. U.S. Environmental Protection Agency, Revised Standards for Hazardous Waste Combustors, Federal Register 61(77) 17,357–17,358 (1996).
  2. U.S. National Research Council, Research Priorities for Airborne Particulate Matter: II. Evaluating Research Progress and Updating the Portfolio (National Academies Press, Washington, D.C., 1999).
  3. J. H. Seinfeld, S. N. Pandis, Atmospheric Chemistry and Physics: From Air Pollution to Climate Change (Wiley, New York, 1998).
  4. D. K. Ottesen, J. C. F. Wang, L. J. Radziemski, “Real-time laser spark spectroscopy of particulates in combustion environments,” Appl. Spectrosc. 43, 967–976 (1989). [CrossRef]
  5. K. C. Ng, N. L. Ayala, J. B. Simeonsson, J. D. Winefordner, “Laser-induced plasma atomic emission-spectrometry in liquid aerosols,” Anal. Chim. Acta 269, 123–128 (1992). [CrossRef]
  6. S. Yalcin, D. R. Crosley, G. P. Smith, G. W. Faris, “Spectroscopic characterization of laser-produced plasmas for in situ toxic metal monitoring,” Hazard. Waste Hazard. Mater. 13, 51–61 (1996). [CrossRef]
  7. M. H. Nunez, P. Cavalli, G. Petrucci, N. Omenetto, “Analysis of sulfuric acid aerosols by laser-induced breakdown spectroscopy and laser-induced photofragmentation,” Appl. Spectrosc. 54, 1805–1816 (2000). [CrossRef]
  8. R. E. Neuhauser, U. Panne, R. Niessner, G. A. Petrucci, P. Cavalli, N. Omenetto, “On-line and in situ detection of lead aerosols by plasma-spectroscopy and laser-excited atomic fluorescence spectroscopy,” Anal. Chim. Acta 346, 37–48 (1997). [CrossRef]
  9. J. P. Singh, F. Y. Yueh, H. S. Zhang, R. L. Cook, “Study of laser induced breakdown spectroscopy as a process monitor and control tool for hazardous waste remediation,” Process Control Qual. 10, 247–258 (1997).
  10. R. E. Neuhauser, U. Panne, R. Niessner, P. Wilbring, “On-line monitoring of chromium aerosols in industrial exhaust streams by laser-induced plasma spectroscopy (LIPS),” Fresenius J. Anal. Chem. 364, 720–726 (1999). [CrossRef]
  11. J. E. Carranza, B. T. Fisher, G. D. Yoder, D. W. Hahn, “On-line analysis of ambient air aerosols using laser-induced breakdown spectroscopy,” Spectrochim. Acta Part B 56, 851–864 (2001). [CrossRef]
  12. D. W. Hahn, M. M. Lunden, “Detection and analysis of aerosol particles by laser-induced breakdown spectroscopy,” Aerosol Sci. Technol. 33, 30–48 (2000). [CrossRef]
  13. D. W. Hahn, W. L. Flower, K. R. Hencken, “Discrete particle detection and metal emissions monitoring using laser-induced breakdown spectroscopy,” Appl. Spectrosc. 51, 1836–1845 (1997). [CrossRef]
  14. D. W. Hahn, J. E. Carranza, G. R. Arsenault, H. A. Johnsen, K. R. Hencken, “Aerosol generation system for development and calibration of laser-induced breakdown spectroscopy instrumentation,” Rev. Sci. Instrum. 72, 3706–3713 (2001). [CrossRef]
  15. J. E. Carranza, D. W. Hahn, “Plasma volume considerations for analysis of gaseous and aerosol samples using laser-induced breakdown spectroscopy,” J. Anal. At. Spectrosc. 74, 5450–5454 (2002).
  16. J. E. Carranza, D. W. Hahn, “Assessment of the upper particle size limit for quantitative analysis of aerosols using laser-induced breakdown spectroscopy,” Anal. Chem. 74, 5450–5454 (2002). [CrossRef] [PubMed]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited