High Performance SWIR Imaging Cameras

Table 1: Common detector materials and their typical detection range within the VIS-IR wavelength regions. Above 1100nm, Silicon is transparent and therefore cannot be used to detect photons of these wavelengths, however many other materials do have photon sensitivity at these wavelengths and longer, see Table 1. The materials listed have been developed into detection systems which enable images to be acquired within the various regions of the visible to infrared spectrum. The typical definition for each ‘sub-region’ within VIS-IR wavelength range is outlined in Figure 1. Each of the materials above present their own advantages and challenges and therefore prior to detector selection the user must consider all aspects of the intended application, in addition to simply the wavelength response.