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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 1 — Jan. 19, 2007

Laser-induced fluorescence-cued, laser-induced breakdown spectroscopy biological-agent detection

John D. Hybl, Shane M. Tysk, Shaun R. Berry, and Michael P. Jordan  »View Author Affiliations


Applied Optics, Vol. 45, Issue 34, pp. 8806-8814 (2006)
http://dx.doi.org/10.1364/AO.45.008806


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Abstract

Methods for accurately characterizing aerosols are required for detecting biological warfare agents. Currently, fluorescence-based biological agent sensors provide adequate detection sensitivity but suffer from high false-alarm rates. Combining single-particle fluorescence analysis with laser-induced breakdown spectroscopy (LIBS) provides additional discrimination and potentially reduces false-alarm rates. A transportable UV laser-induced fluorescence-cued LIBS test bed has been developed and used to evaluate the utility of LIBS for biological-agent detection. Analysis of these data indicates that LIBS adds discrimination capability to fluorescence-based biological-agent detectors. However, the data also show that LIBS signatures of biological agent simulants are affected by washing. This may limit the specificity of LIBS and narrow the scope of its applicability in biological-agent detection.

© 2006 Optical Society of America

OCIS Codes
(140.3440) Lasers and laser optics : Laser-induced breakdown
(300.6210) Spectroscopy : Spectroscopy, atomic
(300.6360) Spectroscopy : Spectroscopy, laser

ToC Category:
Spectroscopy

History
Original Manuscript: March 10, 2006
Revised Manuscript: July 6, 2006
Manuscript Accepted: August 11, 2006

Virtual Issues
Vol. 2, Iss. 1 Virtual Journal for Biomedical Optics

Citation
John D. Hybl, Shane M. Tysk, Shaun R. Berry, and Michael P. Jordan, "Laser-induced fluorescence-cued, laser-induced breakdown spectroscopy biological-agent detection," Appl. Opt. 45, 8806-8814 (2006)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-45-34-8806

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