LASER COMPONENTS now also manufactures lead selenide detectors with four channels: the quad version is an attractive alternative for gas measurement.
Four selected PbSe chips are arranged in quadrants and equipped with their own filter; they are housed in a TO-8 or TO-39 can. The readout of all channels is carried out simultaneously. For an improved signal in the long-wave range, cooled versions are also available.
When applying PbSe detectors, it was previously necessary to use either several single detectors or filter wheels to detect different wavelengths. The new solution saves you space in your system, time when measuring, and costs in procurement.
Compared to pyroelectric detectors PbSe detectors are the better choice where a higher D* value or a higher speed is desired.
Source: LASER COMPONENTS GmbH