Research Papers

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

[+] Author Affiliations
Beop-Min Kim

Yonsei University, Department of Biomedical Engineering, 234 Maeji, Heungup, Wonjoo, Kangwon-Do, 220-710 Korea

Michael D. Feit, Alexander M. Rubenchik, Elizabeth J. Joslin, Peter M. Celliers, Ju¨rgen Eichler, Luiz B. Da Silva

Medical Technology Program, Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California?94551

J. Biomed. Opt. 6(3), 332-338 (Jul 01, 2001). doi:10.1117/1.1381561
History: Received Dec. 7, 1999; Revised Dec. 29, 2000; Accepted Jan. 3, 2001
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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. © 2001 Society of Photo-Optical Instrumentation Engineers.

© 2001 Society of Photo-Optical Instrumentation Engineers

Citation

Beop-Min Kim ; Michael D. Feit ; Alexander M. Rubenchik ; Elizabeth J. Joslin ; Peter M. Celliers, et al.
"Influence of pulse duration on ultrashort laser pulse ablation of biological tissues", J. Biomed. Opt. 6(3), 332-338 (Jul 01, 2001). ; http://dx.doi.org/10.1117/1.1381561


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