Optical Crosstalk In Infrared Detector Arrays

Large focal plane detective assemblies are an important component of many new infrared surveillance or imaging systems. These focal plane assemblies comprising large mosaics or long linear arrays of lead salt or crystal detectors are being integrated into new and more sophisticated systems which are in turn demanding more range and better resolution. One area which may hinder achievement of these goals lies in the unwanted effects of electrical or optical crosstalk. This paper suggests some specific measures which may be taken to reduce optical crosstalk in these detective assemblies.