Mid Wave and Long Wave Single Uni polar Barrier Infrared Detectors Based on Antimonide Material Systems
Infrared detectors are very important technological tools for many different applications. Infrared detectors have existed as far back as the late 1700s but received a tremendous push 200 years later during World War II. Both thermal and photon based infrared detectors have had significant advancements with many different varieties becoming available with varying degrees of sensitivity, speed, and wavelength sensitivity. One of the best performing technologies is based on Mercury Cadmium Telluride. However, it still has limitations with regard to low operating temperature, material yield and processing difficulties. A newer material technology known as type II indium arsenide/gallium antimonide strain layered superlattice has received much attention for its potential superior performance from lower dark current, mature III V material fabrication techniques, and design versatility. However, superior