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 Karl Franzens University Graz

Graz University of Technology 

Ultrafast Laser Processes at Interfaces:Physico-Chemical Aspects and Applications
Wolfgang Kautek
Univ. Wien
17:00 - 18:00 Tuesday 27 May 2008 KFU

Intensive research has been undertaken in ultra-short laser microprocessing particularly of inorganic and biological samples [1]. 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 [2,3]. Electrolyte containment of solid interfaces showed strong influence on the resulting micro- and nanostructures. The phenomena are discussed in respect to the surface free energy in dependence of material composition and interfacial structure.
[2,3].

1. J. Krüger and W. Kautek, in "Advances in Polymer Science", Vol. 168,
"Polymers and Light". Ed. Thomas Lippert, Springer-Verlag Berlin Heidelberg, 2004, S. 247-289.
"Ultrashort Pulse Laser Interaction with Dielectrics and Polymers".

2. W. Kautek, P. Rudolph, G. Daminelli, J. Krüger, Appl. Phys. A 81 (2005) 65–70
"Physico-chemical aspects of femtosecond-pulse-laser-induced surface nanostructures".

3. W. Kautek, in "Laser Ablation and its Applications", Ed. C. Phipps,
Springer Series in Optical Sciences, Norwell, Mass. USA 2007. 215-229.
"Physical Chemistry of Ultrafast Laser Interactions with Solids".