Surface Processing

The group Surface Processing is divided into two subsections:

Section 1 deals with femtosecond laser surface processing of various materials ranging from metals and metal alloys to polymers or even composites. The extremely short interaction time of femtosecond laser pulses with matter offers extraordinary surface characteristics. The micro- and nanostructures arising on the substrates can be exploited for efficient cooling, enhanced absorption, or even to enlarge the catalytic effect of electrodes for water electrolysis.

The research and development of section 2 is focused on acoustics. Mainly based on fiber optic sensors, systems of sound detection in air or under water are developed. Customer-specific needs or application driven parameters strongly affect the sensor and system evolution within this section.
Customized photoacoustic gas detection systems are scope of the acoustics section, too. A unique, miniaturized detection technique enables fast and even fiber coupled sensing of various species.

Research Topics

Femtosecond laser material processing is the core competence of this group. This technique is exploited to create tailored surface properties as well as fiber sensors such as fiber Bragg gratings.
One major research topic is the increase of the processing speed for the femtosecond laser technique. Lasers with higher repetition rate are used within the Project Green H2 to achieve efficient material surface processing in quantities in the order of m²/h.

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Current research within the group Surface Processing is rendered possible by industry and public funding bodies.

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