Ultrashort pulse lasers: new aspects of materials interaction

Wolfgang Kautek; P. Rudolph; Grazia Daminelli; Andreas Hertwig; Sven Martin; J. Bonse; Joerg Krueger

doi:10.1117/12.548244

20 September 2004 Ultrashort pulse lasers: new aspects of materials interaction

Wolfgang Kautek, P. Rudolph, Grazia Daminelli, Andreas Hertwig, Sven Martin, J. Bonse, Joerg Krueger

Proceedings Volume 5448, High-Power Laser Ablation V; (2004) https://doi.org/10.1117/12.548244
Event: High-Power Laser Ablation, 2004, Taos, New Mexico, United States

Abstract

The authors' research on the laser interaction with semiconductors, high-performance ceramics, oxides, and glasses with pulse durations of 30 fs and 130 fs is reviewed. Near-ablation threshold investigations were concerned with the generation of periodic nanostructures and their correlation with physico-chemical properties of the solid phase such as e.g. the material-dependent surface energy. Molecular dynamic modeling in the sub-picosecond time domain considered ultrafast opto-electronic processes triggering surface reorganization reactions. Fluid containment of solid interfaces showed strong influence on the resulting micro- and nanostructures due to its drastic reduction of the surface energy. The phenomena are discussed in respect to the minimization of the surface free energy in dependence of material composition and interfacial structure.

Citation Download Citation

Wolfgang Kautek, P. Rudolph, Grazia Daminelli, Andreas Hertwig, Sven Martin, J. Bonse, and Joerg Krueger "Ultrashort pulse lasers: new aspects of materials interaction", Proc. SPIE 5448, High-Power Laser Ablation V, (20 September 2004); https://doi.org/10.1117/12.548244

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