Hugo Geiger Price (2nd place) / 2026
Cost-effective photoacoustic sensors for comprehensive trace gas detection
Photoacoustic sensors are highly sensitive to low gas concentrations. Thanks to innovative light sources and microphone chips, these sensors can be made into cost-effective, compact, energy-efficient systems. This enables them to monitor gases across large areas. As part of his doctoral thesis, Dr. Christian Weber from Fraunhofer IPM developed two sensor architectures to monitor carbon dioxide and nitrogen dioxide, for which he was awarded the Hugo Geiger Prize.
more info