PETIT, Laëtitia; CARDINAL, Thierry; VIDEAU, Jean-Jacques; LE FLEM, Gilles; GUYOT, Yannick; BOULON, Georges; COUZI, Michel; BUFFETEAU, Thierry

doi:10.1016/S0022-3093(01)01036-5

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PETIT, Laëtitia
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

CARDINAL, Thierry
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

VIDEAU, Jean-Jacques
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Journal of Non-Crystalline Solids. 2002, vol. 298, n° 1, p. 76-88

Elsevier

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Compositional dependence of spontaneous emission of Er3+ was studied in borate telluriteglasses. The improvement of the luminescence at 1533 nm while pumping at 980 nm by introducing sodium tetraborate in a telluriteglass host is discussed in Er3+ doped and Yb3+/Er3+ co-doped glasses. From the absorption, emission spectra and lifetime measurements, an optimized sodium tetraborate molar concentration between 1.25% and 2.5% was shown to induce a maximum intensity of the 1533 nm spontaneous emission in correlation with a more efficient non-radiative transfer from the pump level to the emitting level of Er3+. The introduction of Na2B4O7 shortens the radiative lifetime of the erbium pump level (4I1L/2) as well as decreases the visible luminescence resulting from up conversion effect.< Leer menos

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Glasses

Luminescence

Inorganic compounds

Erbium

Tellurite

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Effect of the introduction of Na2B4O7 on erbium luminescence in tellurite glasses

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