National Research Council of Canada

Francois Doucet

Mohamad Sabsabi

Lutfu Celebi Ozcan

Paul Bouchard

Jean-François Gravel

Lutfu-Celebi Ozcan

Francis Boismenu

Lütfü Celebi Özcan

Jean-Francois Gravel

The present invention provides a method and compact apparatus for laser induced breakdown atomic emission spectroscopy from a targeted sample having a laser generating a laser beam, the laser beam directed to the sample, optical means for manipulating the laser beam in order maximize laser fluency at the target surface of the sample, the laser beam generating ablation and plasma emission from the sample at the target surface, an emission spectrometer having a detector for detecting a plasma plume from the plasma emission.

Compact apparatus for laser induced breakdown spectroscopy and method therefor

The invention discloses an apparatus and method for use with Laser Induced Breakdown Spectroscopy (LIBS) systems that can be applied to the real time analysis of various materials. The invention, in one aspect, provides a layer-by-layer method to remove the undesired coating layer of a material in which a pulsed laser is coupled with high speed scanning optics. To prepare the surface for LIBS, (i) a pulsed laser beam is scanned over an area of the surface to ablate the surface coating layer; (ii) the laser parameters are changed (i.e. pulse duration is made smaller) and the area scanned again to polish the surface; and (iii) the laser parameters are changed again (i.e. pulse duration is made smaller yet again) and the area scanned again with spectrometric analysis of the plasma plume created by the laser (i.e. LIBS is performed).

Method and apparatus for fast quantitative analysis of a material by laser induced breakdown spectroscopy (LIBS)

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Laval, Canada

Francois Doucet