Swiss company Axetris AG manufactures a range of infrared light sources for gas sensing applications in the mid-infrared range.

Axetris IR sources are suited for compact IR gas detection modules where a high emissivity, high reliability and low power consumption are key requirements. Axetris IR sources are micro-machined, electrically modulated thermal infrared emitters featuring black body radiation characteristics, low power consumption, high emissivity and a long lifetime.

The patented design is based on a resistive heating element integrated onto a thin dielectric membrane which is suspended on a micro-machined silicon structure. All products are manufactured at Axetris’ micro-technology clean room facilities in central Switzerland.

Axetris IR Emitters / IR Sources
The Axetris range of Infrared Light Sources

Infrared Gas Detection Applications:

Measurement principles: non-dispersive infrared spectroscopy (NDIR), photoacoustic infrared spectroscopy (PAS) or attenuated-total-reflectance FTIR spectroscopy (ATR)
Target gases: CO, CO2, VOC, NOx, NH3, SOx, SF6, hydrocarbons, humidity, anesthetic agents, refrigerants, breath alcohols
Medical: Capnography, anesthesia gas monitoring, respiration monitoring, pulmonary function monitoring, breath alcohol measurement
Automotive / Transportation: Exhaust gas monitoring, breath alcohol testing (Interlock/Alcolock), demand controlled ventilation
HVAC: Demand controlled ventilation, refrigerant monitoring
Safety & Industry: Combustion gas analyzers, gas detection in fluids, incubators


True black body radiation (2 to 14 µm)
High emissivity
Fast electrical modulation (no chopper wheel needed)
High modulation depth
High electrical input to optical output efficiency
Low power consumption
Long lifetime
Rugged MEMS design (passed the requirements of IEC 60721-3-7 Class 7M3, except for BaF2 and CaF2 windows