Activated huntite-like glasses are promising photonic materials

4^th International Conference on Photonics & Laser Technology

July 28-29, 2016 Berlin, Germany

Georgii Malashkevich

D Mendeleyev University of Chemical Technology, Russia

Posters & Accepted Abstracts: J Laser Opt Photonics

Abstract :

Glasses of the (LnxY1-x)2O3-Al2O3-B2O3 system with composition close to the huntite stoichiometry (huntite-like glasses) are characterized by the highest value (about 0.67 nm) of minimal distance between the rare earth ions for oxide matrixes and relatively high thermal and physicochemical characteristics. That gives to such glasses the attractive perspectives for use as different light converters and optical sensors as well as high-doped laser materials. In this report, we consider structural, spectralluminescent, thermal and laser properties of the glasses activated with Ce3+, Sm3+, Gd3+, Tb3+, Yb3+, and Sb3+ ions depending on their synthesis conditions. It have been established that the glasses investigated permits to control the [BO3]/[BO4] groups relation by temperature of synthesis. A peak value of their quantum yield of luminescence, limited by intracenter exchange of excitations in vibration of structural elements of the matrix, for the Yb3+ ions was about 90% and close to 100% for the other ones. It is shown a high competitiveness of the Ce-Gd-Tb-Sb-containing glasses for solving of problem connected with visualization of UV images and X-rays and discussed lasing on the Yb-containing glasses obtained for the first time. It is noted a low efficiency of cooperative luminescence of Yb3+ ions and relatively effective Raman scattering in the glasses.

Biography :

Email: g.malashkevich@ifanbel.bas-net.by