[INVITED] Signal and noise in Laser Induced Breakdown Spectroscopy: An introductory review

Year: 2016

Authors: Tognoni E., Cristoforetti G.

Autors Affiliation: CNR, Istituto Nazionale di Ottica, Via G Moruzzi 1, I-56124 Pisa, Italy

Abstract: Laser Induced Breakdown Spectroscopy (LIBS) has become a very popular technique for elemental analysis thanks to its ease of use. However, LIBS users often report poor repeatability of the signal, due to shot-to-shot fluctuations, and consequent not satisfactory limits of detection. In many practical cases, these shortcomings are difficult to control because the signal is affected by several noise sources that cannot be reduced simultaneously. Hopefully, there is a large amount of knowledge, accumulated during several decades, that can provide guidelines to reduce the effect of the single sources of fluctuations. Experimental setup and measurement settings can be optimized on purpose. Spectral data can be processed in order to better exploit the information contained. In the current paper several approaches to improve the analytical figures-of-merit are reviewed and the respective advantages and drawbacks are discussed. (C) 2015 Elsevier Ltd. All rights reserved.


Volume: 79      Pages from: 164  to: 172

KeyWords: Laser Induced Breakdown Spectroscopy; signal; noise; fluctuations; normalization
DOI: 10.1016/j.optlastec.2015.12.010

Citations: 95
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-06-09
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here