Which detector should I use for 1-3 micron or 1-5 micron IR sensing?

For IR sensing in the 1 to 3 micron or 1 to 5 micron region, AP Technologies offers dedicated IR detector families rather than trying to stretch silicon devices beyond their sweet spot. The main product overview highlights PbS detectors for 1 to 3.1 microns and PbSe detectors for 1 to 5 microns, which makes them relevant for gas analysis, flame monitoring and other mid-IR or near-IR tasks. Detector selection in this range usually depends on wavelength coverage, signal level and response speed, so the exact choice should follow the application rather than the broad label of ‘IR detector’. AP Technologies’ portfolio gives you the right starting point if your project sits outside the normal silicon photodiode range.

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