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Journal of Biomedical Optics

Influence of pulse duration on ultrashort laser pulse ablation of biological tissues
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Paper Abstract

Ablation characteristics of ultrashort laser pulses were investigated for pulse durations in the range of 130 fs–10 ps. Tissue samples used in the study were dental hard tissue (dentin) and water. We observed differences in ablation crater morphology for craters generated with pulse durations in the 130 fs–1 ps and the 5 ps–10 ps range. For the water experiment, the surface ablation and subsequent propagation of stress waves were monitored using Mach–Zehnder interferometry. For 130 fs–1 ps, energy is deposited on the surface while for longer pulses the beam penetrates into the sample. Both studies indicate that a transition occurs between 1 and 5 ps.

Paper Details

Date Published: 1 July 2001
PDF: 7 pages
J. Biomed. Opt. 6(3) doi: 10.1117/1.1381561
Published in: Journal of Biomedical Optics Volume 6, Issue 3
Show Author Affiliations
Beop-Min Kim, Yonsei Univ. (South Korea)
Michael D. Feit, Lawrence Livermore National Lab. (United States)
Alexander M. Rubenchik, Lawrence Livermore National Lab. (United States)
E. J. Joslin, Lawrence Livermore National Lab. (United States)
Peter M. Celliers, Lawrence Livermore National Lab. (United States)
Juergen P. Eichler, Lawrence Livermore National Lab. and Univ. of Applied Science (Germany)
Luiz Barroca Da Silva, Lawrence Livermore National Lab. (United States)

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