ABSTRACT:Lead-niobium-germanate glass thin films have been produced by pulsed laser deposition in a broad O 2 pressure range (10 -6 -10 -1 mbar). The cation composition in the films approaches that of the glass target for a presure of 10 -2 mbar. The oxygen content is only close or above than that of the glass for a pressure close to 10 -1 mbar,