Effect of thermal treatment on spectroscopic properties of europium doped niobate phosphate glasses

Tatyana V. Bocharova; Anna N. Vlasova; Garegin O. Karapetyan; Alexey M. Mironov

doi:10.1117/12.836897

17 June 2009 Effect of thermal treatment on spectroscopic properties of europium doped niobate phosphate glasses

Tatyana V. Bocharova, Anna N. Vlasova, Garegin O. Karapetyan, Alexey M. Mironov

Proceedings Volume 7377, Twelfth International Workshop on Nanodesign Technology and Computer Simulations; 73770J (2009) https://doi.org/10.1117/12.836897
Event: Nano-Design, Technology, Computer Simulations, 2008, Minsk, Belarus

Abstract

Glasses of the following composition 45Na₂O•(55 - x)P₂O₅•xNb₂O₅ and 50Na₂O•(50 - x)P₂O₅•xNb₂O₅ are studied. It is found that under the influence of γ-radiation the glass color changes. Optical absorption spectra, photoluminescence spectra, Rayleigh and Mandel'shtam - Brillouin scattering (RMBS) spectra are investigated in dependence of glass composition, europium concentration, thermal treatment duration and radiation dose. Effect of secondary thermal treatment is studied on the base of 45Na₂O•25P₂O₅•30Nb₂O₅ doped with 1 mol.% Eu₂O₃. It is found that intensity of photoluminescence gives rise and decay time as well under thermal treatment at the temperature exceeding transition temperature by 50 degrees. RMBS spectra of glasses after thermal treatment demonstrate decrease of scattering intensity while Eu₂O₃ being doped. Effects obtained are accounted for europium ion local symmetry changes.

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Tatyana V. Bocharova, Anna N. Vlasova, Garegin O. Karapetyan, and Alexey M. Mironov "Effect of thermal treatment on spectroscopic properties of europium doped niobate phosphate glasses", Proc. SPIE 7377, Twelfth International Workshop on Nanodesign Technology and Computer Simulations, 73770J (17 June 2009); https://doi.org/10.1117/12.836897

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