Femtosecond-pulse laser ablation of dental hydroxyapatite and single-crystalline fluoroapatite

被引：0

作者：

J. Krüger

W. Kautek

H. Newesely

机构：

[1] Labor für Dünnschichttechnologien,

[2] Bundesanstalt für Materialforschung und -prüfung,undefined

[3] Unter den Eichen 87,undefined

[4] 12205 Berlin,undefined

[5] Germany (Fax: +49-30/8104-1827,undefined

[6] E-mail: joerg.krueger@bam.de),undefined

[7] Institut für Klinisch-Theoretische Zahn-,undefined

[8] Mund- und Kieferheilkunde,undefined

[9] Freie Universität Berlin,undefined

[10] Assmannshauserstrasse 4-6,undefined

[11] 14197 Berlin,undefined

[12] Germany,undefined

来源：

Applied Physics A | 1999年 / 69卷 / Suppl 1期

关键词：

PACS: 42.62.C; 79.20.D; 87.45.B;

D O I：

10.1007/PL00024633

中图分类号：

学科分类号：

摘要：

Laser microdrilling of healthy human enamel and dentine using 300 fs pulses at a wavelength of 615 nm and 3 Hz repetition rate leads to an enhanced structuring quality in comparison with nanosecond-laser results. Microcracking and damage to neighboring tissue can be reduced. Ablation threshold fluences for 100 laser pulses of 0.3 J cm-2 (human dentine), 0.6 J cm-2 (human enamel) and 0.8 J cm-2 (single crystalline fluoroapatite) could be determined. Ablation depths per pulse below 1 μm were observed.

引用

页码：S403 / S407

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