MTF optimization of MCT detectors

Spatial applications are challenging infrared (IR) technologies requiring the best system performances. Usually, the need is a trade-off between the signal to noise ratio (SNR) and spatial response of the IR detector, and in particular the modulation transfer function (MTF) performance. MTF optimization requires a deep understanding of detector physics and the use of evaluation tools. This paper describes the optimization of an n-on-p Mercury Cadmium Telluride (MCT) pixel design using a MTF mathematical model to predict the performance.