Measurement Technology and Analytics

Spectroscopic methods, especially in the visible, near-infrared and infrared spectral range, enable the exact determination of the transmission or reflection properties of various materials such as element and compound semiconductors as well as filter elements, layers and layer systems (anti-reflection layers, polarizing coatings). In addition, dynamic spectral effects and time-resolved spectroscopic measurements in the nanosecond range can be investigated by step scanning the interferogram (step scan mode).

Two different types of spectrometers are available for the analysis of gaseous, liquid and solid substances. For the measurement of CO₂ and ethanol, a microspectrometer based on Fabry-Pérot filter elements was developed together with the Center for Microtechnologies at Chemnitz University of Technology and InfraTec GmbH Dresden. It is mainly used for the analysis of gases and is particularly suitable for small, portable measuring and monitoring systems, e.g. for monitoring anaesthetic gases. The grating spectrometers developed with TQ Systems GmbH in Chemnitz operate in the mid and near infrared range. The numerous application possibilities range from monitoring gases to the analysis of drugs or medicines to fecal fat measurement.

Services

• Transmission, reflection (directed: 5-80°, diffuse) and ATR measurements
• Determination of refractive index and coating thickness
• Time-resolved FT-IR measurements
• Application developments