Abstract
Terahertz time-domain spectroscopy was used to investigate the optical properties of oxyfluorosilicate glasses doped with neodymium (Nd 3 +) ions. The refractive indices and absorption coefficients of such glass samples were found to be 3.7 and below 10 cm -1 at 0.5 THz. Exhibiting high-refractive index and low loss, the Nd 3 +:Oxyfluorosilicate glasses are attractive for THs device applications.