High power pulsed magnetron sputtering (HPPMS) has been employed for the growth of TiO x (x > 1.8) films from a ceramic TiO 1.8 target in an Ar-O 2 ambient. The film properties have been compared to those deposited by dc magnetron sputtering (dcMS). Both HPPMS and dcMS films exhibit an amorphous structure and are transparent. Furthermore, films grown by HPPMS have improved properties, such as higher density, higher refractive index and smoother film sur- face, as compared to those deposited by dcMS.