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Article Dans Une Revue Optical Materials Express Année : 2023

Mid-infrared emission properties of erbium-doped fluorite-type crystals

Simone Normani
  • Fonction : Auteur
Liza Basyrova
  • Fonction : Auteur
Abdelmjid Benayad
  • Fonction : Auteur
Alain Braud
Elena Dunina
  • Fonction : Auteur
Liudmila Fomicheva
  • Fonction : Auteur
Alexey Kornienko
  • Fonction : Auteur
Ammar Hideur
  • Fonction : Auteur
Patrice Camy
  • Fonction : Auteur

Résumé

We report on a comparative study of the spectroscopic properties and mid-infrared laser performance of five 5 at.% Er 3+ -doped fluorite-type crystals MF 2 , including parent compounds CaF 2 , SrF 2 , BaF 2 , and solid-solution (“mixed”) ones (Ca,Sr)F 2 and (Sr,Ba)F 2 . In the M = Ca → Sr → Ba series, the host matrix phonon energy decreases, the absorption and mid-infrared emission spectra of Er 3+ become narrower and more structured, and the luminescence lifetimes of the 4 I 11/2 and 4 I 13/2 Er 3+ manifolds increase. The Er 3+ transition probabilities were calculated using the Judd-Ofelt theory. In the “mixed” compounds, the Er 3+ ions tend to reside in the larger / heavier cation environment. The low-temperature (12 K) spectroscopy evidences the presence of a single type of clusters at this doping level; the crystal-field splitting for Er 3+ ions in clusters was determined. Continuous-wave low-threshold laser operation at ∼2.8 µm (the 4 I 11/2 → 4 I 13/2 transition) was achieved with all five Er 3+ :MF 2 crystals. The maximum achieved laser slope efficiency was 37.9% (Er 3+ :CaF 2 ), 23.5% (Er 3+ :SrF 2 ) and 17.2% (Er 3+ :BaF 2 ).
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Dates et versions

hal-04209389 , version 1 (01-11-2023)

Identifiants

Citer

Simone Normani, Pavel Loiko, Liza Basyrova, Abdelmjid Benayad, Alain Braud, et al.. Mid-infrared emission properties of erbium-doped fluorite-type crystals. Optical Materials Express, 2023, 13 (7), pp.1836-1851. ⟨10.1364/OME.482402⟩. ⟨hal-04209389⟩
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