Design of Perfectly Ordered Periodic Structures on Polymers Using Direct Laser Interference Patterning
Surfaces with controlled topographic characteristics can provide enhanced properties in comparison to surfaces with a random roughness. Several examples of ordered topographies can be found on the surfaces of different plants and animals, which are the result of several 1000 years of evolution. In this manner, nature has shown to be capable of overcoming survival challenges by using bottom-up approaches of surface texturing.
In this chapter, different aspects of laser-based interferometric methods for the treatment of polymer-based materials are introduced. In the first part of the chapter, the main parameters used to control and obtain interference patterns are introduced. After that, several examples of pattern fabrication are discussed showing the potential of the method. The examples include the fabrication of single-scaled and multiple-scaled patterns as well as the structuring of polymer-polymer foil’s interfaces. Finally, a general model for the simulation of the process is introduced.
KeywordsDirect Laser Interference Patterning Surface structuring In-volume laser surface treatment Surface functionalization Modeling of DLIP High-throughput DLIP
The work of S.A. was supported by the Laser4Fun project (www.laser4fun.eu), funded from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 675063. The work of A. L. is also supported by the German Research Foundation (DFG) under Excellence Initiative program by the German federal and state governments to promote top-level research at German universities.
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