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An infrared detector is a photodetector that reacts to infrared (IR) radiation. Most types of IR detectors give an electrical signal as output.
Some detectors can be used as bolometers and thermopiles, or as arrays of microbolometers or photodiodes for infrared cameras and thermal imaging.
Types
| Type | Spectral range (μm) |
| Indium gallium arsenide (InGaAs) photodiodes | 0.7-2.6 |
| Germanium photodiodes | 0.8-1.7 |
| Lead sulfide (PbS) photoconductive detectors | 1-3.2 |
| Lead selenide (PbSe) photoconductive detectors | 1.5-5.2 |
| Indium arsenide (InAs) photovoltaic detectors | 1-3.8 |
| Platinum silicide (PtSi) photovoltaic detectors | 1-5 |
| Indium antimonide (InSb) photoconductive detectors | 1-6.7 |
| Indium antimonide (InSb) photodiode detectors | 1-5.5 |
| Mercury cadmium telluride (MCT, HgCdTe) photoconductive detectors | 2-25 |
| Mercury zinc telluride (MZT, HgZnTe) photoconductive detectors | ? |
Vanadium pentoxide is frequently used as a detector material in uncooled microbolometer arrays.
See also
External links
- Characteristics and Use of Infrared Detectors Hamamatsu Photonics
- Technological Advances Lead to Greater Variety of Infrared Detectors Hamamatsu Photonics
"Infrared detector"