Efficient 1.53 mu m erbium light emission in heavily Er-doped titania-modified aluminium tellurite glasses (Articolo in rivista)

Type
Label
  • Efficient 1.53 mu m erbium light emission in heavily Er-doped titania-modified aluminium tellurite glasses (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jnoncrysol.2007.02.052 (literal)
Alternative label
  • Brovelli S.; Galli A.; Lorenzi R.; Meinardi F.; Spinolo G.; Tavazzi S.; Sigaev V.; Sukhov S.; Pernice P.; Aronne A.; Fanelli E.; Paleari A. (2007)
    Efficient 1.53 mu m erbium light emission in heavily Er-doped titania-modified aluminium tellurite glasses
    in Journal of non-crystalline solids
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Brovelli S.; Galli A.; Lorenzi R.; Meinardi F.; Spinolo G.; Tavazzi S.; Sigaev V.; Sukhov S.; Pernice P.; Aronne A.; Fanelli E.; Paleari A. (literal)
Pagina inizio
  • 2150 (literal)
Pagina fine
  • 2156 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 353 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 22-23 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Coll London, London Ctr Nanotechnol, Dept Phys & Astron, London WC1E 6BT, England; Univ Milan, Dept Mat Sci, Consorzio Nazl Interuniv Sci Fis Mat, I-20125 Milan, Italy; Univ Milan, INFM, I-20125 Milan, Italy; Univ Milan, CNR, I-20125 Milan, Italy; Univ Milan, Dept Mat Sci, I-20125 Milan, Italy; Mendeleev Univ Chem Technol, Dept Glass, Moscow 125190, Russia; Univ Naples Federico 2, Dept Mat & Prod Engn, I-80125 Naples, Italy (literal)
Titolo
  • Efficient 1.53 mu m erbium light emission in heavily Er-doped titania-modified aluminium tellurite glasses (literal)
Abstract
  • Ti-Al co-doped erbium, tellurite glasses have been obtained by melting mixed Er2O3 TiO2 and TeO2 batches in AlO3 crucibles. By crucible dissolution Al2O3 amounts from 11.5 to 18.6 mol% were introduced in the synthesized glasses. Differential thermal analysis of glasses points to a strong dependence of glass transition temperature T-g with the substitution extent of TeO2 by the doping oxides. No crystallization features are observed up to 450 degrees C. The spectral features and decay kinetics of the infrared photolurninescence of erbium demonstrate the possibility to achieve more than 50% of quantum yield of light-emission at Er (3+) concentrations as large as 10(21) cm(-3), with about 2 ms of lifetime, 8 X 10(-21) cm(2) of Stimulated emission cross section, and no saturation at pump power densities higher than 10 kW cm(-2). The study of the kinetics of Er-Er energy transfer suggests to ascribe these features to a particularly homogeneous dispersion of Er 3+ ions in the modified tellurite network. Raman scattering measurements of the spectral distribution of vibrational modes evidence that the introduction of doping oxides leads to an increase of structural disorder without crystallization effects. (c) 2007 Published by Elsevier B.V. (literal)
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