Abstract

If the spectra of the ejected species in laser-induced breakdown (LIBS) experiments are detected with a sufficiently high resolution, the determination of isotopic content and ratio in the target material becomes possible. The isotopic shift of single atoms - as they are the main product of LIBS - is in the order of several ten picometers or less. Spectrometers with sufficient resolutions can be an Echelle Spectrometer, Fourier Transform Spectrometer, Fabry-Perot Interferometers. A younger type of spectral device that has mainly been used in astronomy so far is the Spatial Heterodyne Spectrometer (SHS) [1].

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