Three-Color Focal-Plane Array of Infrared QWIPs

A proposed focal-plane array (FPA) of quantum-well infrared photodetectors (QWIPs) would sense images in three different infrared wavelength bands simultaneously. These and other QWIP infrared image sensors are undergoing development for use in measuring temperature distributions in images; potential applications include scientific (e.g., remote sensing of the Earth and other planets) and military (e.g., discriminating between targets and other objects in terms of temperature).