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Proceedings Paper

Dependence of the ablative effect of nanosecond laser pulses at the surface of dentine samples on the laser wavelength
Author(s): Constantin G. Fenic; Ioan Chis; Razvan V. Dabu; Aurel Stratan; Ion G. Apostol; Razvan Stoian; C. Luculescu; Cornel Ghica; Leona C. Nistor
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Paper Abstract

A Q-switched Nd:YAG laser beam and its second and fourth harmonics were focused onto the polished surface of dentine samples in order to compare the ablative effect for the three wavelengths. A photoacoustic technique is applied for the ablation threshold determination. The Scanning Electron Microscope images of the produced craters are investigated and the volume of ablated material is determined. The necessary optical constants for the ablation calculation are experimentally determined.

Paper Details

Date Published: 2 July 1998
PDF: 6 pages
Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); doi: 10.1117/12.312649
Show Author Affiliations
Constantin G. Fenic, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Ioan Chis, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Razvan V. Dabu, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Aurel Stratan, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Ion G. Apostol, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Razvan Stoian, National Institute for Laser, Plasma, and Radiation Physics (Germany)
C. Luculescu, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Cornel Ghica, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Leona C. Nistor, National Institute for Materials Physics (Romania)


Published in SPIE Proceedings Vol. 3405:
ROMOPTO '97: Fifth Conference on Optics
Valentin I. Vlad; Dan C. Dumitras, Editor(s)

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