ION-IMPLANTATION EFFECTS IN HEAVY-METAL FLUORIDE GLASSES

Samples of a heavy metal fluoride glass (BInZnYbTGa) were subjected to argon and nitrogen irradiations of energies of 50 and 100 keV and fluences of 5×1016 and 1×1017 ions/cm2. A 10 keV Ar irradiation at the ion dose of 1×1017/cm2 was also performed. Modifications induced by the implants were characterized by nuclear microanalysis, electron spectroscopy, scanning electron microscopy and optical techniques. Surface precipitation of Th and Ba, as well as F and In depletion, were detected. Correlated modifications of the optical transmittance and reflectance were observed. © 1990.