Photovoltaic Indium Antimonide (InSb) Infrared Detectors
- Technology
- Infrared photodetectors
- Partner
- Infrared Associates
InfraRed Associates, Inc. offers photovoltaic indium antimonide detectors (InSb), which are characterised by their high bandwidth.These InSb detectors offer excellent electro-optical performance and are designed for the wavelength range from 1 micron to 5.5 microns.
Principle
The photovoltaic effect is the generation of potential over the p-n transition when radiation of the correct wavelength hits it. When the photon flow irradiates the transition, electron-hole pairs are formed when the photon energy exceeds the bandgap.
The field brings electrons from the p-range to the n-range and the holes from the n-range to the p-range. This process makes the p-region positive and the n region negative and generates a current flow in an external circuit. An image of the InSb detector is displayed on the right. This consists of both a signal and noise current generator in parallel with a resistive and capacitive term.
With the detector, a suitable preamplifier can be offered, which is optimally adapted to the selected detector.
Downloads
for Photovoltaic Indium Antimonide (InSb) Infrared Detectors
What’s in this range?
All the variants in the range and a comparison of what they offer
Available LN2 cooled InSb detectors
| Model | Element size (mm) | Wavelength | D(λp,1000.1) | Dewars available |
|---|---|---|---|---|
IS-0.25 | 0.25 x 0.25 | 1 – 5.5µm |
| 8h ,12h, or 24h |
IS-0.5 | 0.5 x 0.5 | 1 – 5.5µm |
| 8h ,12h, or 24h |
IS-1.0 | 1.00 x 1.00 | 1 – 5.5µm |
| 8h ,12h, or 24h |
IS-2.0 | 2.00 x 2.00 | 1 – 5.5µm |
| 8h ,12h, or 24h |
