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Issue 8, 2010
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Elemental analysis by microwave-assisted laser-induced breakdown spectroscopy: Evaluation on ceramics

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Abstract

A new Laser-Induced Breakdown Spectroscopy (LIBS) enhancement method utilizing interaction between microwave radiation and laser-induced plasma has been evaluated. Experimental parameters such as laser pulse irradiance, microwave duration, and surrounding gas were studied and optimized for the microwave effect through a series of experiments on a piece of alumina ceramic sample. Up to 33 times enhancement on different spectral lines was achieved. Enhancement of the line intensity was found to be at a maximum when the laser ablation was induced at low irradiance on a large area in normal atmosphere. The enhancement was element-dependent and stronger for transitions with low excitation energy. The microwave enhancement in argon atmosphere was not as effective as in air, and the reasons are discussed.

Graphical abstract: Elemental analysis by microwave-assisted laser-induced breakdown spectroscopy: Evaluation on ceramics

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Publication details

The article was received on 17 Feb 2010, accepted on 05 May 2010 and first published on 24 May 2010


Article type: Paper
DOI: 10.1039/C003304A
Citation: J. Anal. At. Spectrom., 2010,25, 1316-1323
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    Elemental analysis by microwave-assisted laser-induced breakdown spectroscopy: Evaluation on ceramics

    Y. Liu, M. Baudelet and M. Richardson, J. Anal. At. Spectrom., 2010, 25, 1316
    DOI: 10.1039/C003304A

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