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

Beop Min Kim, Michael D. Feit, Alexander M. Rubenchik, Elizabeth J. Joslin, Peter M. Celliers, J�rgen Eichler, Luiz B. Da Silva

Research output: Contribution to journalArticlepeer-review

76 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)332-338
Number of pages7
JournalJournal of biomedical optics
Issue number3
Publication statusPublished - 2001 Jul
Externally publishedYes


  • Ablation
  • Biological tissues
  • Pulse duration
  • Ultrashort laser pulse

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering


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