THZ Heterodyne Imaging Applicatiions, Instruments and Directions

This paper briefly discusses some of the RF heterodyne imaging applications and instruments that are being developed and deployed for the THz frequency regime. After more than three decades of academic research the THz equivalent of the IR camera is still confined to proposals. However, as the component technology matures and new instruments emerge, interest in applications has followed. Some of the early imaging array concepts are now being revisited and new ideas are coming into the light.