The Physics in Applications of Ultrafast Lasers

被引：0

作者：

Wortmann, Dirk ^{[1
]}

Reininghaus, Martin ^{[1
]}

Finger, Johannes ^{[1
]}

Dold, Claus ^{[3
]}

Russbueldt, Peter ^{[2
]}

Poprawe, Reinhart ^{[1
,2
]}

机构：

[1] Rhein Westfal TH Aachen, Chair Lasertechnol, Steinbachstr 15, Aachen, Germany

[2] Fraunhofer Inst Lasertech, Aachen, Germany

[3] Inspire AG, Zurich, Switzerland

来源：

PHOTONICS, DEVICES, AND SYSTEMS V | 2011年 / 8306卷

关键词：

Ultrashort pulses; laser matter interaction; energy diffusion; heat accumulation; non-thermal ablation; FEMTOSECOND;

D O I：

10.1117/12.911309

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

High precision and high throughput material processing using ultrashort pulsed laser radiation of high average power requires a detailed understanding of the laser matter interaction on ultrafast time scales. In this paper, we will focus on energy transport mechanisms based on the two-temperature-model and the resulting ablation regimes for single pulses. Heat accumulation at high pulse repetition rates and spatial pulse overlap will be discussed. Additional, a novel non-thermal ablation mechanism for graphite and corresponding materials will be presented.

引用

页数：6

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