| Literature DB >> 11516324 |
B M Kim1, M D Feit, A M Rubenchik, E J Joslin, P M Celliers, J Eichler, L B Da Silva.
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.Entities:
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Year: 2001 PMID： 11516324 DOI： 10.1117/1.1381561
Source DB: PubMed Journal: J Biomed Opt ISSN： 1083-3668 Impact factor: 3.170