Multi-pulse laser-induced plasma spectroscopy using a single laser source and a compact spectrometer

G. Galbács, Viktória Budavári, Z. Geretovszky

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

A portable laser induced breakdown spectrometer (LIBS), built around a microscope using a Q-switched Nd:GGG laser releasing multiple pulses and a non-intensified fiber optic spectrometer, was used to investigate the signal improvement of emission data achievable by the multiple-pulse approach. LIBS experiments were carried out in air and using Al, Cu, Si and Zn metallic targets. It was found that the use of 7 laser pulses, separated by ca. 25 μs time intervals, enhance line emissions by a factor of 2.5 to 129 with respect to the single-pulse case, and also decrease the relative standard deviation of the signal based on five consecutive measurements to 2-5%. Time-resolved emission data and the observation of ablation craters suggest that the signal enhancement is mainly attributable to the reheating of the plasma by multiple laser pulses.

Original languageEnglish
Pages (from-to)974-980
Number of pages7
JournalJournal of Analytical Atomic Spectrometry
Volume20
Issue number9
DOIs
Publication statusPublished - Sep 2005

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Light sources
Spectrometers
Laser pulses
Spectroscopy
Plasmas
Lasers
Ablation
Fiber optics
Microscopes
Air
Experiments

ASJC Scopus subject areas

  • Spectroscopy

Cite this

Multi-pulse laser-induced plasma spectroscopy using a single laser source and a compact spectrometer. / Galbács, G.; Budavári, Viktória; Geretovszky, Z.

In: Journal of Analytical Atomic Spectrometry, Vol. 20, No. 9, 09.2005, p. 974-980.

Research output: Contribution to journalArticle

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