Research on Type II Superlattice (T2SL) FPAs is increasing rapidly as evidenced by the ten papers presented on these detectors at the April SPIE Infrared Technology & Applications Conference in Orlando. Currently, most of this work is aimed at improving performance in the LWIR, since good performance has already been demonstrated in the MWIR.
Researchers at Jet Propulsion Laboratory have achieved a significant breakthrough by fabricating the first large format QDIP Quantum Dot Infrared Photodetector) FPA. The 640 x 512 FPA formed excellent images and had an NETD of 40 mK at an operating temperature of 60 K.