Quantum structures for infrared imaging

We have used quantum wells, quantum dots, and strained layer sperlattices for infrared detection and imaging. Quantum well infrared photodetectors (QWIPs) are based on GaAs/AlGaAs material system and the quantum dot infrared detector (QDIPs) are based on InAs/InGaAs/GaAs materials system. Strained layer superlattice (SLS) detectors are based on InAs/GaSb materials system and grown on GaSb substrates.