Development of the NMOS-based THz detectors and the readout systems for THz spectroscopy and imaging

This paper summarizes the work performed within the Polish applied research project THzOnLine aiming at multipixel THz detectors based on selective NMOS transistors and its application in biology, medicine and security systems, completed in 2016. It starts with presentation of techniques applied for increasing the efficiency of THz detectors, i.e. used to maximize the output voltage yielded from NMOS-based detecting devices when exposed to a THz radiation. In the second part of this work the authors focuse on issues related to development of the readout electronics for these devices, as well as present the collection of integrated circuits and two complete measurement systems constructed by them.