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Proceedings Paper

Nonlinear transmission and second harmonic generation in dentin in the field of ultrashort Nd-laser pulses
Author(s): Gregory B. Altshuler; Nickolai R. Belashenkov; George A. Martsinovski; Anatoly A. Solounin
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Paper Abstract

The frequency conversion of light in dental tissues is examined experimentally. It is shown that IR picosecond pulses of passively mode- locked neodymium laser stimulate the emission of visible radiation in enamel and dentin under threshold of destruction. The spectra of emitted radiation are measured in different regimes of dental tissue excitation. It is observed that the wavelength of maximum intensity and bandwidth of spectral distribution of visible radiation correspond to second harmonic of YAG:Nd laser radiation. The comparative study of second harmonic generation is enamel and dentin is carried out. The spatial spectra of forward scattered second harmonic radiation are measured. The nonlinear transmission of intact dentin in the field of intensive ultrashort Nd- laser pulses is observed. The possibilities of optical diagnostics of hard tooth tissues are discussed.

Paper Details

Date Published: 17 April 1995
PDF: 5 pages
Proc. SPIE 1984, Advanced Laser Dentistry, (17 April 1995); doi: 10.1117/12.207027
Show Author Affiliations
Gregory B. Altshuler, Institute of Fine Mechanics and Optics (Russia)
Nickolai R. Belashenkov, Institute of Fine Mechanics and Optics (Russia)
George A. Martsinovski, Institute of Fine Mechanics and Optics (Russia)
Anatoly A. Solounin, Institute of Fine Mechanics and Optics (Russia)


Published in SPIE Proceedings Vol. 1984:
Advanced Laser Dentistry
Gregory B. Altshuler; Richard J. Blankenau; Harvey A. Wigdor, Editor(s)

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