Time-resolved photography of the plasma-plume and ejected particles in laser ablation of polytetrafluoroethylene

被引：24

作者：

Huber, N ^{[1
]}

Gruber, J ^{[1
]}

Arnold, N ^{[1
]}

Heitz, J ^{[1
]}

Bäuerle, D ^{[1
]}

机构：

[1] Johannes Kepler Univ, A-4040 Linz, Austria

来源：

EUROPHYSICS LETTERS | 2000年 / 51卷 / 06期

关键词：

D O I：

10.1209/epl/i2000-00391-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

KrF-excimer laser ablation of sintered-powder PTFE targets is successfully used for the deposition of high-quality thin films. The mechanism is based on the high extinction of the pressed-ponder targets which causes more efficient dissipation of the incident laser-light energy. As a result, a strong ly forward-directed jet of PTFE particles is generated. This jet is investigated by means of a gated ICCD-camera. While the expansion of the visible plume starts with the laser pulse and lasts for about 10 mu s, the particle jet can be observed within a time interval between about 5 mu s and more than 100 mu s after the laser guise.

引用

页码：674 / 678

页数：5

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2-W

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