The physics in applications of ultrafast lasers

Dirk Wortmann; Martin Reininghaus; Johannes Finger; Claus Dold; Peter Russbueldt; Reinhart Poprawe

doi:10.1117/12.911309

11 October 2011 The physics in applications of ultrafast lasers

Dirk Wortmann, Martin Reininghaus, Johannes Finger, Claus Dold, Peter Russbueldt, Reinhart Poprawe

Proceedings Volume 8306, Photonics, Devices, and Systems V; 830603 (2011) https://doi.org/10.1117/12.911309
Event: Photonics Prague 2011, 2011, Prague, Czech Republic

Abstract

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 nonthermal ablation mechanism for graphite and corresponding materials will be presented.

Citation Download Citation

Dirk Wortmann, Martin Reininghaus, Johannes Finger, Claus Dold, Peter Russbueldt, and Reinhart Poprawe "The physics in applications of ultrafast lasers", Proc. SPIE 8306, Photonics, Devices, and Systems V, 830603 (11 October 2011); https://doi.org/10.1117/12.911309

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