Materials Characterization and Testing

Non-destructive and contactless measurement with optical techniques

We develop application-oriented measurement systems for material characterization and testing. In doing so, our scientists draw on expertise in optical system and measurement technology, spectroscopy and the development of innovative data processing techniques. The technologies range from optical coherence tomography (OCT) in the visible and near-infrared spectral range, hyperspectral imaging in the near- and mid-infrared, and time-domain spectroscopy in the terahertz frequency range to electronic system concepts in the millimeter-wave range. All of these techniques operate in a non-destructive and non-contact manner.

Typical material testing tasks include:

  • Detection of internal defects in ceramics, plastics or even fiber-reinforced composites.
  • Determining individual layer thicknesses in multilayer systems such as coatings or multilayer components such as tubes or films

Material characterization is often based on spectroscopic issues:

  • Identifying materials
  • Determining certain characteristics such as moisture or sugar content


We offer the following services relating to all aspects of materials charcterization and testing

  • Technology consulting
  • Initial tests and feasibility studies
  • Measuring studies and measurements on customers site
  • Development from single components up to individual complete systems
  • Equipment rent

Fields of Activity


Application Center TeraTec

In our application center TeraTec we provide customers with tailor-made solutions with our terahertz expertise.


Optical Metrology

We develop measuring and testing systems for the quality control of composite materials and coatings using technologies such as spectroscopy, hyperspectral imaging or white light interferometry.


Layer Thickness Measurement

Using terahertz waves enables layer thicknesses to be measured non-destructively and without making contact. It also opens up the possibility of inspecting multi-layer systems.


Material Analysis

With the use of terahertz spectroscopy, chemical substances can be detected and identified. Our spectrometer detects the chemical fingerprint of substances (gases, liquids, solids).


Non-Destructive Testing

We developed a terahertz scanner for quality control of glass-fiber reinforced plastics which are commonly used in aircraft construction today.

Information Material

Flyers and other information material of the department.

A Short Interview with...

Head of Department Prof. Dr. Georg von Freymann.

»Through our research, we generate innovations that guarantee the technological edge needed to survive in global competition.«


Employee profiles of the department »Materials Characterization and Testing«.