The Sapienza Terahertz group of Prof. Stefano Lupi is located at Department of Physics University La Sapienza, Rome, Italy. The interests of the group are focused on the exotic low-energy excitations in condensed matter physics ranging from Dirac electrons in Topological Insulators and graphene, High-Tc superconductors, plasmonics and metamaterials, the development of new sources and new instrumentations for IR and THz spectroscopy, and IR and THz investigations in biophysics and condensed matter. The Sapienza Terahertz consists in two laboratories. One located in the first floor of Fermi Building (112) allowing pump-probe time resolved experiments on the femtosecond scale from THz to UV, the second at third floor (318) allowing broad band frequency-domain spectroscopy. Both laboratories show ancillary equipments able to manage different samples from biological materials to solid-state materials, gas and liquids controlling temperature, pressure, humidity, and applying electric and magnetic fields.