Fluorescence properties of Nd3+-doped tellurite glasses.

Kumar, K Upendra; Prathyusha, V A; Babu, P; Jayasankar, C K; Joshi, A S; Speghini, A; Bettinelli, M

Kumar, K Upendra; Prathyusha, V A; Babu, P; Jayasankar, C K; Joshi, A S; Speghini, A; Bettinelli, M.

Afiliación

Kumar KU; Department of Physics, Sri Venkateswara University, Tirupati 517 502, India.

Spectrochim Acta A Mol Biomol Spectrosc ; 67(3-4): 702-8, 2007 Jul.

Article en En | MEDLINE | ID: mdl-17027327

RESUMEN

The compositional and concentration dependence of luminescence of the (4)F(3/2)-->(4)I(J) (J=13/2, 11/2 and 9/2) transitions in four Nd(3+)-doped tellurite based glasses has been studied. The free-ion energy levels obtained for 60TeO(2)+39ZnO(2)+1.0Nd(2)O(3) (TZN10) glass have been analysed using the free-ion Hamiltonian model and compared with similar results obtained for Nd(3+):glass systems. The absorption spectrum of TZN10 glass has been analysed using the Judd-Ofelt theory. Relatively longer decay rates have been obtained for Nd(3+)-doped phosphotellurite glasses. The emission characteristics of the (4)F(3/2)-->(4)I(11/2) transition, of the Nd(3+):TZN10 glass, are found to be comparable to those obtained for Nd(3+):phosphate laser glasses. The non-exponential shape of the emission decay curves for the (4)F(3/2)-->(4)I(11/2) transition is attributed to the presence of energy transfer processes between the Nd(3+) ions.

Asunto(s)

Vidrio/química; Iones; Neodimio/química; Espectrometría de Fluorescencia; Telurio/química; Fluorescencia

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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Espectrometría de Fluorescencia / Telurio / Vidrio / Iones / Neodimio Tipo de estudio: Prognostic_studies Idioma: En Revista: Spectrochim Acta A Mol Biomol Spectrosc Asunto de la revista: BIOLOGIA MOLECULAR Año: 2007 Tipo del documento: Article País de afiliación: India Pais de publicación: Reino Unido

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