Infrared detector

The thermal effects of the incident IR radiation can be followed through many temperature dependent phenomena.

The response time and sensitivity of photonic detectors can be much higher, but usually these have to be cooled to cut thermal noise.

Photovoltaic detectors contain a p-n junction on which photoelectric current appears upon illumination.

An infrared detector is hybridized by connecting it to a readout integrated circuit with indium bumps.

The materials basis for infrared detection devices are narrow-gap semiconductors, including compounds and alloys of bismuth, antimony, indium, cadmium, selenium and others.

Prototype of high-speed infrared detector installed on the PIONIER instrument at ESO ’s Paranal Observatory . [ 1 ]