Radiometry using a platinum silicide detector

Abstract

Platinum silicide (PtSi) staring array detectors have recently been developed and applied in a number of applications to perform medium wave infrared (MWIR) observations and radiometry. PtSi detectors have a strongly wavelength dependent response function, which results in a requirement to have much more a priori knowledge of an object to perform radiometric calculations than is required of a flat response detector. The impact of this wavelength dependence is examined and radiometric calibration procedures are developed for both resolved and unresolved targets.