Pr3+-Yb3+ co-doped transparent ZrF4-based bulk and planar waveguide glass ceramics (GCs) have been fabricated using the physical vapor deposition. X-ray diffraction and transmission electron microscopy analysis have shown the presence of a single crystalline phase that belongs to the LaF3-ZrF4 system. Upon 980 nm excitation, blue, orange and red emissions have been obtained both in bulk and waveguides. Intense luminescence of Yb3+ ions has been observed after excitation at 476 nm and is ascribed by to energy transfer (ET) from Pr3+ to Yb3+. The ET efficiency was estimated to be 92% for 0.5 mol% Pr3+-10 mol% Yb3+ co-doping. (C) 2013 Elsevier B.V. All rights reserved.
Up- and down-conversion in Yb3+-Pr3+ co-doped fluoride glasses and glass ceramics / Dieudonne, B; Boulard, B; Alombert-Goget, G; Chiasera, A; Gao, Y; Kodjikian, S; Ferrari, M. - In: JOURNAL OF NON-CRYSTALLINE SOLIDS. - ISSN 0022-3093. - 377:(2013), pp. 105-109. [10.1016/j.jnoncrysol.2012.12.025]
Up- and down-conversion in Yb3+-Pr3+ co-doped fluoride glasses and glass ceramics
Chiasera A;
2013-01-01
Abstract
Pr3+-Yb3+ co-doped transparent ZrF4-based bulk and planar waveguide glass ceramics (GCs) have been fabricated using the physical vapor deposition. X-ray diffraction and transmission electron microscopy analysis have shown the presence of a single crystalline phase that belongs to the LaF3-ZrF4 system. Upon 980 nm excitation, blue, orange and red emissions have been obtained both in bulk and waveguides. Intense luminescence of Yb3+ ions has been observed after excitation at 476 nm and is ascribed by to energy transfer (ET) from Pr3+ to Yb3+. The ET efficiency was estimated to be 92% for 0.5 mol% Pr3+-10 mol% Yb3+ co-doping. (C) 2013 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
