Xacton developed a new process to produce high quality single crystals of mercury cadmium telluride with possible use in infrared sensors and focal plane arrays over nearly the entire infrared spectrum. This process already succeeded in the 10 micron range and to a limited extent in the 15-16 micron range. This project will determine if this process is feasible for growing mercury cadmium telluride for use in the 15-25 microns range, which sdi needs for dim cold targets and high sensitivity areas. This technology can produce infrared focal plane arrays for various defense applications, such as surveillance, target detection, tracking, missile guidance, thermal imaging, navigation, and night vision. Commercial applications include fiber optics, medical, and scientific instruments .