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Proceedings Paper

Spectroscopic analyses during femtosecond laser ablation of hydroxyapatite
Author(s): Floralice Marimona Miroiu; Ion N. Mihailescu; Joerg Hermann; Marc L. Sentis
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Paper Abstract

The plasma generated by ablation of hydroxyapatite Ca10(PO4)6(OH)2 with ultrashort laser pulses was studied in order to get a deeper insight in the fundamental mechanisms of the interaction of femtosecond laser pulses with the biocompatible target material. First, the propagation of the luminous plasma plume was observed using a fast ICCD camera while time- and space-resolved emission spectroscopy was employed to measure the plasma composition and its evolution as a function of time and space. It is shown that the kinetic energies of ablated atoms and ions are one order of magnitude smaller than those generated by hydroxypatite nanosecond laser ablation. Rather low temperatures of about 3500 and 2500 K are deduced from the relative intensity of spectral lines.

Paper Details

Date Published: 21 October 2004
PDF: 7 pages
Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); doi: 10.1117/12.583024
Show Author Affiliations
Floralice Marimona Miroiu, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Ion N. Mihailescu, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Joerg Hermann, LP3, CNRS (France)
Marc L. Sentis, LP3, CNRS (France)

Published in SPIE Proceedings Vol. 5581:
ROMOPTO 2003: Seventh Conference on Optics
Valentin I. Vlad, Editor(s)

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