Spectroscopic properties and energy transfer in Yb3+-Ho3+ co-doped germanate glass emitting at 2.0 mu m - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Non-Crystalline Solids Année : 2011

Spectroscopic properties and energy transfer in Yb3+-Ho3+ co-doped germanate glass emitting at 2.0 mu m

Résumé

A new kind of germanate glass co-doped with Yb3+-Ho3+ was prepared. The J-O parameters were calculated to be Ω2 = (6.59 ± 0.21) × 10− 20 cm2, Ω4 = (2.77 ± 0.36) × 10− 20 cm2, and Ω6 = (1.90 ± 0.25) × 10− 20 cm2. The little overlap between the absorption cross section and stimulated emission cross section indicates a non-resonant energy transfer process. The calculation demonstrates that the energy transfer between Yb3+ and Ho3+ is one-phonon assisted in a great measure. The gain coefficient of Ho3+ at 2.0 μm was also calculated. The fluorescence measurement shows the Yb3+ co-doping enhances the 2.0 μm emission remarkably.

Domaines

Matériaux

Dates et versions

hal-00719705 , version 1 (20-07-2012)

Identifiants

Citer

Jintai Fan, Youyu Fan, Yi Yang, Danping Chen, Laurent Calvez, et al.. Spectroscopic properties and energy transfer in Yb3+-Ho3+ co-doped germanate glass emitting at 2.0 mu m. Journal of Non-Crystalline Solids, 2011, 357 (11-13), pp.2431-2434. ⟨10.1016/j.jnoncrysol.2010.11.085⟩. ⟨hal-00719705⟩
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