Ablation studies of erbium:YAG laser radiation with pellethane

被引：4

作者：

Wannop, NM

Dickinson, MR

Farrar, SR

King, TA

机构：

[1] Laser Photonics Research Group, Department of Physics and Astronomy, University of Manchester

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1996年 / 29卷 / 11期

关键词：

D O I：

10.1088/0022-3727/29/11/001

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The ablative mechanisms associated with 2.94 mu m radiation produced by a free-running Er:YAG laser have been studied using pellethane as a target medium. Probe beam techniques have been used and provide evidence that each individual relaxation oscillation within the free-running pulse can lead to ablation. A simple model, which takes into account the presence of the ablation plume, has been applied to the data and fits well. A threshold fluence for ablation of 10.8+/-0.8 J cm(-2) was obtained with an absorption coefficient of 235+/-39 cm(-1). The studies may have relevance to medical applications of the laser.

引用

页码：2735 / 2739

页数：5

共 15 条

[1] EXCIMER LASER ETCHING OF POLYIMIDE [J].