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Conferences > ASSL > 2013 > AM4A > AM4A.03

Energy transfer process in Pr3+-Yb3+ codoped fluorogermanate glasses and glass ceramics and their enhanced luminescence properties

Shaoqian Zhang, Mingxiu Xu, Yuelong Zhang, Yuqi Jin, and Xianghua Zhang

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Abstract

Pr3+-Yb3+ codoped 65GeO215Ga2O310BaO10LaF3 glasses were prepared. Infrared cross relaxation involving Yb3+: 2F5/2 → 2F7/2 emission was achieved on the excitation of the 1G4 state level of Pr3+. Visible multiphonon-assisted anti-Stokes excitation was obtained involving Pr3+: 3P0→3H4 emission thanks to Yb3+ sensitizer. We also found that the quantum efficiency could be increased by LaF3 nanacrystals precipitation.

© 2013 Optical Society of America

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