Mid-IR luminescence of Dy3+ and Pr3+ doped Ga5Ge20Sb10S(Se)(65) bulk glasses and fibers - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Materials Letters Année : 2013

Mid-IR luminescence of Dy3+ and Pr3+ doped Ga5Ge20Sb10S(Se)(65) bulk glasses and fibers

Résumé

Dy3+ and Pr3+ doped Ga5Ge20Sb10S(Se)65 glasses provide good emission efficiencies in the mid-infrared (mid-IR). The complex glassy network of these chalcogenide glasses were characterized by Raman scattering and extended X-ray absorption fine structure, to put in evidence a structure combining tetrahedra of Germanium and Gallium and trigonal pyramids of Antimony. The arrangement of these structural units permits the introduction of rare earth ions thanks, in particular, to a charge compensation generated by the Ga in a tetrahedral site. Consequently, Pr3+ and Dy3+ ions inserted in such low phonon energy glasses emit efficiently in mid-IR, between 3.5 and 5 μm. Finally, Dy3+ and Pr3+ doped Ga5Ge20Sb10S(Se)65 fibers were obtained from bulk glass preform. Efficient emission in mid-IR was obtained by pumping Dy3+ doped Ga5Ge20Sb10S65 and Pr3+ doped Ga5Ge20Sb10S(Se)65 fibers at 920 nm and 2 μm, respectively.

Domaines

Matériaux

Dates et versions

hal-00848941 , version 1 (29-07-2013)

Identifiants

Citer

Frédéric Charpentier, Florent Starecki, Jean-Louis Doualan, Pal Jovari, Patrice Camy, et al.. Mid-IR luminescence of Dy3+ and Pr3+ doped Ga5Ge20Sb10S(Se)(65) bulk glasses and fibers. Materials Letters, 2013, 101, pp.21-24. ⟨10.1016/j.matlet.2013.03.062⟩. ⟨hal-00848941⟩
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