Next Generation of Light Detectors in Astronomy

Abstract

The paper summarizes the current status of light detectors in astronomy with focus on space science missions. Due to the effort and time needed for the necessary space qualifications, new technologies potentially interesting for space applications are commonly developed and tested for use at on-ground observatories and flown once the technology has matured. But the space environment also requires the development of special detectors for spectral ranges only detectable beyond earth’s atmosphere or the development of features and technological enhancements, for example to mitigate space radiation effects. An overview of detector technologies from the visible to short wavelength infrared (SWIR) band together with an outlook to the challenges of a next generation of light detectors for space astronomy missions.