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Qualitative assessment of laser-induced breakdown spectra generated with a femtosecond fiber laser |
Applied Optics, Vol. 51, Issue 36, pp. 8669-8676 (2012)
http://dx.doi.org/10.1364/AO.51.008669
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Abstract
This paper presents what is to our knowledge the first evaluation of laser-induced breakdown spectroscopy (LIBS) studies on elemental composition detection and identification by employing a femtosecond (fs) fiber laser. Qualitative LIBS spectra were obtained in ambient air using a 1030 nm fs fiber laser. Specific ion and neutral emission lines of different materials have been characterized, including metal, metal alloy, semiconductor, and glass. The performance and LIBS spectra of an intensified CCD (ICCD) system and a nonintensified CCD system were compared. Time-resolved emission spectra depicting the detailed plasma evolution was collected from sub-spot-size craters. The gated ICCD gives improved signal-to-noise ratio by a factor of 20 compared with a nongated, nonintensified CCD system. This shows a potential portable and field-deployable LIBS system for versatile and rapid analysis of chemicals and special materials.
© 2012 Optical Society of America
OCIS Codes
(140.3440) Lasers and laser optics : Laser-induced breakdown
(300.6365) Spectroscopy : Spectroscopy, laser induced breakdown
(060.3510) Fiber optics and optical communications : Lasers, fiber
ToC Category:
Spectroscopy
History
Original Manuscript: October 5, 2012
Revised Manuscript: November 19, 2012
Manuscript Accepted: November 20, 2012
Published: December 17, 2012
Citation
Huan Huang, Lih-Mei Yang, and Jian Liu, "Qualitative assessment of laser-induced breakdown spectra generated with a femtosecond fiber laser," Appl. Opt. 51, 8669-8676 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-36-8669
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