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Proceedings Paper

LIBS system with compact fiber spectrometer, head mounted spectra display and hand held eye-safe erbium glass laser gun
Author(s): Michael J. Myers; John D. Myers; John T. Sarracino; Christopher R. Hardy; Baoping Guo; Sean M. Christian; Jeffrey A. Myers; Franziska Roth; Abbey G. Myers
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Paper Abstract

LIBS (Laser Induced Breakdown Spectroscopy) systems are capable of real-time chemical analysis with little or no sample preparation. A Q-switched laser is configured such that laser induced plasma is produced on targeted material. Chemical element line spectra are created, collected and analyzed by a fiber spectrometer. Line spectra emission data is instantly viewed on a head mounted display. "Eye-safe" Class I erbium glass lasers provide for insitu LIBS applications without the need for eye-protection goggles. This is due to the fact that Megawatt peak power Q-switched lasers operating in the narrow spectral window between 1.5um and 1.6um are approximately 8000 times more "eye-safe" than other laser devices operating in the UV, visible and near infrared. In this work we construct and demonstrate a LIBS system that includes a hand held eye-safe laser gun. The laser gun is fitted with a micro-integrating sphere in-situ target interface and is designed to facilitate chemical analysis in remote locations. The laser power supply, battery pack, computer controller and spectrophotometer components are packaged into a utility belt. A head mounted display is employed for "hands free" viewing of the emitted line spectra. The system demonstrates that instant qualitative and semi-quantitative chemical analyses may be performed in remote locations utilizing lightweight commercially available system components ergonomically fitted to the operator.

Paper Details

Date Published: 17 February 2010
PDF: 16 pages
Proc. SPIE 7578, Solid State Lasers XIX: Technology and Devices, 75782G (17 February 2010); doi: 10.1117/12.841901
Show Author Affiliations
Michael J. Myers, Kigre, Inc. (United States)
John D. Myers, Kigre, Inc. (United States)
John T. Sarracino, Kigre, Inc. (United States)
Christopher R. Hardy, Kigre, Inc. (United States)
Baoping Guo, Kigre, Inc. (United States)
Sean M. Christian, Kigre, Inc. (United States)
Jeffrey A. Myers, Kigre, Inc. (United States)
Franziska Roth, Kigre, Inc. (United States)
Abbey G. Myers, Kigre, Inc. (United States)

Published in SPIE Proceedings Vol. 7578:
Solid State Lasers XIX: Technology and Devices
W. Andrew Clarkson; Norman Hodgson; Ramesh K. Shori, Editor(s)

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