QWIP Camera Development and Applications

Quantum well infrared photodetector (QWIP) technology opens up new opportunities to realize focal plane arrays (FPA) for high-performance thermal imaging. Large infrared detector arrays with excellent thermal and spatial resolution, low fixed-pattern noise, low 1/f noise, and high pixel yield can thus be realized at moderate cost.
In this tutorial, I will report on typical QWIP structures optimized for thermal imaging applications, the development of focal plane arrays, and the performance of state-of-the-art QWIP cameras. Dual-band QWIP FPAs detecting simultaneously in different spectral bands will also be addressed.
In most cases, a successful novel technology is not only suitable for existing applications; it will also create its new applications. Talking about applications of QWIP FPAs, I will show that QWIP technology has in fact lead to new and interesting opportunities, in particular in the medical market.