For almost five decades metallic glasses have been subject of great interest due to their particular and novel properties that are unusual for solid metals. Although commercial applications of metallic glasses are increasing, there is still a limited knowledge on some of their properties. In this project we study the response of metallic glasses in the THz frequency range, where a strong anomaly in the vibrational spectrum, known as Boson Peak, has been reported. In order to study the existence of this anomaly both pure metals and metallic glasses have been analyzed by means of a time-domain spectroscopy technique. Afterwards, both metallic glasses and pure metal’s results will be compared in order to study if the Boson Peak is intrinsically characteristic of metallic glasses. 2015/2016