Open AccessOptically active Er–Yb doped glass films prepared by pulsed laser deposition
Author(s) -
R. Serna,
J. M. Ballesteros,
M. Jiménez de Castro,
J. Solı́s,
C. N. Afonso
Publication year - 1998
Publication title -
journal of applied physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.699
H-Index - 319
eISSN - 1089-7550
pISSN - 0021-8979
DOI - 10.1063/1.368304
Subject(s) - photoluminescence , materials science , luminescence , pulsed laser deposition , doping , phosphate glass , annealing (glass) , analytical chemistry (journal) , thin film , laser , refractive index , laser ablation , ion , erbium , optoelectronics , optics , chemistry , nanotechnology , physics , organic chemistry , chromatography , composite material
3 pages, 2 figures.Active rare-earth Er3 + –Yb3 + co-doped phosphate glass films are produced in a single step by pulsed laser deposition. The films are multimode waveguides and exhibit the highest refractive index, optical density and 1.54 µm photoluminescence intensity and lifetime when deposited at low oxygen pressure (Pox4 (menor o igual) 10–5 Torr). The density of the films obtained under these conditions is higher than that of the target material as a consequence of the high kinetic energy of the species generated during ablation. Luminescent emission can be excited by optical pumping the Er3 + ions either directly or through cross-relaxation of the Yb3 + . Post-deposition annealing allows us to improve the luminescence performance.This work has been partially supported by CICYT\ud(Spain) under Project No. TIC96-0467. One of the authors\ud(J.M.B.) acknowledges financial support from the Spanish\udMinistry of Education.Peer reviewe
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