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

被引：73

作者：

Kim, BM

Feit, MD

Rubenchik, AM

Joslin, EJ

Celliers, PM

Eichler, J

Da Silva, LB

机构：

[1] Yonsei Univ, Dept Biomed Engn, Wonju 220710, Kangwon Do, South Korea

[2] Lawrence Livermore Natl Lab, Med Technol Program, Livermore, CA 94551 USA

[3] Univ Appl Sci, Tech Fachhsch Berlin, D-13347 Berlin, Germany

来源：

JOURNAL OF BIOMEDICAL OPTICS | 2001年 / 6卷 / 03期

关键词：

ultrashort laser pulse; pulse duration; ablation; biological tissues;

D O I：

10.1117/1.1381561

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

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. (C) 2001 Society of Photo-Optical Instrumentation Engineers.

引用

页码：332 / 338

页数：7

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