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Species resolved analysis of the expansion of hydroxyapatite laser ablation plumes

Published online by Cambridge University Press:  31 January 2011

P. Serra  and
J. L. Morenza
P. Serra
Affiliation:
Departament de Física Aplicada i Electrònica, Universitat de Barcelona, Avda. Diagonal 647, E-08028 Barcelona, Spain
J. L. Morenza
Affiliation:
Departament de Física Aplicada i Electrònica, Universitat de Barcelona, Avda. Diagonal 647, E-08028 Barcelona, Spain
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Abstract

The plume generated by ablation of hydroxyapatite targets under ArF excimer laser irradiation has been investigated by means of fast intensified charge coupled device (CCD) imaging and optical emission spectroscopy. Results have shown that the plume splits into two plasma clouds as it expands. Time and spatial resolved spectra have revealed that under the experiment conditions emission is mostly due to calcium neutral atoms and calcium oxide molecular radicals. Imaging of the plume with the aid of bandpass filters has demonstrated that the emissive species in the larger and faster plasma cloud are calcium neutral atoms whereas in the smaller and slower one are calcium oxide molecular radicals.

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Type
Articles
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Journal of Materials Research , Volume 13 , Issue 5 , May 1998 , pp. 1132 - 1135
Copyright
Copyright © Materials Research Society 1998

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