Materials Protection and Surface Technology
The task of the Nanomaterial Technologies division is to increase the practical safety of surface functionality using laser-based techniques in the topical fields of materials processing, laser safety and the preservation of cultural assets.
Femtosecond or nanosecond laser pulses offer the means to establish nanostructures with structural widths beneath the refraction limits of traditional optical technology. This enables surfaces to be designed for specific functions and to be adapted to the needs of various technical and biomedical tasks. This technique offers a remarkably high level of flexibility in terms of the achievable geometry and the materials.
In addition to projects on current topics, this division also offers laser resistance testing and damage threshold measurements. The division also investigates the potential for employing lasers to clean dirty or contaminated surfaces.
Fields of expertise
- Micro and nanostructuring of metals, semiconductors, dielectric materials and composites using femtosecond and nanosecond laser pulses
- Testing of stability of filters and frames to laser radiation (DIN EN 207)
- Determination of laser-induced damage thresholds (ISO 21254)
- Use of lasers for cleaning and decontamination, especially for the preservation of cultural assets
- Laser materials processing on the micrometer and nanometer scale
- Material parameters under extreme laser-induced stress
- Laser safety
- Provision of expertise and technical information
- Work on establishment of regulations and standards
Range of services/technical equipment
- Laser technology in the femtosecond range (30 fs pulse duration @ 800 nm wavelength)
- Nanosecond-range cleaning lasers (1064 nm and 532 nm)
- Experimental setup for the determination of laser-induced damage thresholds (10 ns, 1064 nm and 532 nm)
- Optical microscopy
Publications of the division