THERMOSENS

In various fields of optics, there is a need for universal thermal detectors with very high sensitivity. For example, there is no broadband thermal detector that can measure laser power below microwatt.

The coupling of a thin kapton membrane with thin film semiconductor materials, with a very high factor of merit (ZT ~ 1) has made it possible to obtain, thanks to microfabrication technologies, a unique device that can detect radiation of only a few nanowatts. Thus, il can generate electrical powers of up to 100 microwatts with an efficiency of 5%.

• High sensitivity laser power detection (1nW < P < 100mW) with a flat spectrum from visible to far infrared (unique calibration for all types of lasers).

• Possibility of detecting energy pulses of only a few nanojoules without cooling of the thermal and electronic environment.

• Ultimate detection of infra-red radiation with the possibility of thermoelectric generation (from 10 to 100 µW of useful power available per module).

• Laboratory proof of concept, TRL 3 (protected by a patent)
• Versatility and low production cost
  
• Prototype in significant environment in Summer 2022
  

• Fine and precise measurement of laser power
• Precise beam position detection
• Infra-red radiation detector
• Microgenerator (100 mV; 1mA)