Infrared-imaging Detectors Based on Activated Exciton Migration in Molecular Crystals.
The use of thermally activated luminescent processes in some crystalline materials for thermal infrared-to-visible conversion is examined. Such processes are illustrated by the experimental behavior of a Eu(3+)-doped crystalline terbium chelate at cryogenic temperatures. The calculated sensitivity of infrared image converters making use of this phenomenon is of the order of 10(-15) J per image element, depending on the resolution of the optical system.
Kleinerman
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