TeraFERMI: A Superradiant Beamline for THz Nonlinear Studies at the FERMI Free Electron Laser Facility

摘要

During the last few decades, we have witnessed an impressive advancement in the progress of THz technologies. THz spectroscopy can now be considered a mature technique, providing a formidable tool for materials characterization in several different fields, such as materials science, biology, chemistry, medicine, cultural heritage, telecommunications, industrial quality control, and security. The reason for the appeal of THz technology lies in the fact that it is a non-ionizing radiation, with high penetration properties and good chemical specificity. THz radiation can indeed probe excitations of very different origin, including vibrational, electronic, and magnetic modes.