One of the most promising approaches to laser-induced breakdown spectroscopy (LIBS) experiments involves the use of an echelle spectrometer coupled with an intensified CCD. Even if drawbacks remain with its use, the echelle spectrometer facilitates a multielemental analysis that is more rapid than can be obtained with the more-conventional Czerny-Turner spectrometer and, moreover, does not sacrifice reliability. Quantitative results obtained with such apparatus for solids, liquids, powders, and gases are described and when possible compared with results from Czerny-Turner spectrometers. Liquid analysis by LIBS with echelle spectrometers has allowed a spectral database to be compiled. Once the qualitative spectra of pure elements in aqueous solutions, are obtained, they can be used for qualitative analysis of unknown samples.
© 2003 Optical Society of America
Pascal Fichet, Denis Menut, René Brennetot, Evelyne Vors, and Annie Rivoallan, "Analysis by Laser-Induced Breakdown Spectroscopy of Complex Solids, Liquids, and Powders with an Echelle Spectrometer," Appl. Opt. 42, 6029-6035 (2003)