MethodCopyright: © Chair for Laser Technology LLT
The short interaction time between USP-laser radiation and the workpiece leads to an extreme thermodynamic nonequilibrium. As a consequence, metallic properties or strong thermal stresses can be induced in semiconductors or dielectrics. The relaxation of these transient states may cause formation dynamics of micro- and nanostructures with feature sizes below the optical diffraction limit. The analysis of the formation dynamics and the production of tailor-made structures constitute the research priorities.
ApplicationsCopyright: © Chair for Laser Technology LLT
Potential applications of these structures can be found for example in the field of surface functionalization. In this context, tailored surfaces can be applied to manipulate the adhesive properties of a surface. In this way, self-cleaning or friction-optimized surfaces can be produced.
Futhermore, the optical characteristics of a solid can be manipulated by the surface conditions. This enables potential applications in plasmonics, sensor technology or photovoltaics.
Metallic, standing antennas can be applied as electrical contacts in micro-electronics as well as for sensor applications.
The following links provide some topics of the group ultrashort pulse processing at LLT in the field of micro- nano structuring: