Hardly any term can be as broadly defined as that of "photonic systems". Sensors which are attributed to this field use "photonic effects" (i.e. interactions with light) as a sensor effect. Specifically, our field of research spans from well-known optical measurement methods, such as scattering or spectroscopy, to fiber-based techniques or photothermal approaches, and newer technologies such as silicon photonics and frequency comb spectroscopy.
We are keen to identify new approaches of light-matter interactions as sensor effects, as well as we contribute our part on the further development of state-of-research techniques. In doing so, we rely on optical simulations and experimental investigations. Besides the sensor technology our experimental approach covers the development of embedded electronics (as e.g. laser drivers) and specific signal processing, the realization of prototype sensor systems and elaborations on metrological characterizations and calibrations.
At the moment we are engaged in the following effects and techniques, but we are constantly striving to expand our horizons and are open to new.
- Fiber-Bragg-Grating Sensors
- Tuneable Diode Laser Absorption Spectroscopy (2f/WMS)
- Cavity Enhanced Absorption spectroscopy
- Laser Scattering
- Photothermal/-acoustic spectroscopy
- (Dual) Frequency Comb Spectroscopy
Our main target applications are:
- High accuracy humidity and moisture measurement
- High accuracy gas sensing
- Silicon photonics and waveguides
- Gas sensing in harsh environments
- Particle detection
The research on Photonic Sensors is part of the Sensor Systems and Sensor Physics Group.