Dependence of the ablative effect of nanosecond laser pulses at the surface of dentine samples on the laser wavelength

Constantin G. Fenic; Ioan Chis; Razvan V. Dabu; Aurel Stratan; Ion G. Apostol; Razvan Stoian; C. Luculescu; Cornel Ghica; Leona C. Nistor

doi:10.1117/12.312649

2 July 1998 Dependence of the ablative effect of nanosecond laser pulses at the surface of dentine samples on the laser wavelength

Constantin G. Fenic, Ioan Chis, Razvan V. Dabu, Aurel Stratan, Ion G. Apostol, Razvan Stoian, C. Luculescu, Cornel Ghica, Leona C. Nistor

Author Affiliations +

Proceedings Volume 3405, ROMOPTO '97: Fifth Conference on Optics; (1998) https://doi.org/10.1117/12.312649
Event: ROMOPTO '97: Fifth Conference on Optics, 1997, Bucharest, Romania

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.

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Constantin G. Fenic, Ioan Chis, Razvan V. Dabu, Aurel Stratan, Ion G. Apostol, Razvan Stoian, C. Luculescu, Cornel Ghica, and Leona C. Nistor "Dependence of the ablative effect of nanosecond laser pulses at the surface of dentine samples on the laser wavelength", Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); https://doi.org/10.1117/12.312649

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