Reflective terahertz imaging at the ENEA FEL facility

The development of both transmissive and reflective THz imaging is under way at ENEA-Frascati employing a THz compact free electron laser (THz GFEL). The high peak power available makes the FEL particularly suitable for long range detection. Different setup was tested at different levels of spatial resolution to image objects from a few centimetre square to larger sizes.