Stimulated-emission cross-sections of trivalent erbium ions in the cubic sesquioxides Y2O3 , Lu2O3, and Sc2O3 - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Optical Materials Express Année : 2023

Stimulated-emission cross-sections of trivalent erbium ions in the cubic sesquioxides Y2O3 , Lu2O3, and Sc2O3

Anastasia Uvarova
  • Fonction : Auteur
Sascha Kalusniak
  • Fonction : Auteur
Elena Dunina
  • Fonction : Auteur
Liudmila Fomicheva
  • Fonction : Auteur
Alexey Kornienko
  • Fonction : Auteur
Stanislav Balabanov
Alain Braud
Patrice Camy
  • Fonction : Auteur
Christian Kränkel
  • Fonction : Auteur

Résumé

We report on a detailed revision of the spectroscopic properties of Er 3+ ions in the cubic sesquioxide host crystals R 2 O 3 (R = Y, Lu and Sc). The 4f-4f transition probabilities are calculated by applying a modified Judd-Ofelt theory accounting for configuration interaction based on the measured absorption spectra. The stimulated-emission cross-sections for the 4 I 11/2 → 4 I 13/2 (at ∼2.8 µm) and 4 I 13/2 → 4 I 15/2 (at ∼1.6 µm) transitions of Er 3+ ions are determined and the luminescence dynamics from the 4 I 11/2 and 4 I 13/2 manifolds are studied at different temperatures. It is found that the luminescence lifetime of the 4 I 11/2 state strongly depends on the host-forming R 3+ cation even at low temperatures due to a non-negligible non-radiative multiphonon decay channel. Er:Y 2 O 3 exhibits the lowest phonon energies and consequently the longest 4 I 11/2 luminescence lifetimes. A disagreement between the absorption and emission probabilities for the 4 I 15/2 ↔ 4 I 11/2 transition of Er 3+ ions is observed at room temperature and explained considering the distribution of Er 3+ ions over two non-equivalent crystallographic sites, C 2 and C 3i .
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Dates et versions

hal-04209395 , version 1 (02-11-2023)

Identifiants

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Anastasia Uvarova, Pavel Loiko, Sascha Kalusniak, Elena Dunina, Liudmila Fomicheva, et al.. Stimulated-emission cross-sections of trivalent erbium ions in the cubic sesquioxides Y2O3 , Lu2O3, and Sc2O3. Optical Materials Express, 2023, 13 (5), pp.1385. ⟨10.1364/OME.487909⟩. ⟨hal-04209395⟩
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