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Proceedings Paper

Transparent Er3+-activated lead fluorogermanate glass ceramics
Author(s): Raffaella Rolli; Luciano A. Bueno; Sidney J. L. Ribeiro; Younes Messaddeq; Marco Bettinelli; Adolfo Speghini; Maurizio Ferrari; Cristina Armellini; Maurizio Montagna; Giancarlo C. Righini; Stefano Pelli
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Paper Abstract

Transparent glass ceramics containing β-PbF2:Er3+ nanocrystals were obtained through appropriate thermal treatments of a glass of molar composition 60PbGeO3-10PbF2-30CdF2 doped with 0.5 mol% Er3+. Their optical properties, as well as upconversion processes among erbium ions in the glass and glass ceramic matrix were studied. From absorption spectra, Judd-Ofelt parameters and radiative transition rates for several excited levels were calculated. Emission spectra in the visible and NIR regions were collected, and stimulated emission cross sections were obtained by McCumber theory for the 4I13/24I15/2 transition at 1.5 μm. Red and green upconversion emissions were measured in glass and glass ceramics upon excitation at 980 nm; lifetimes were measured in order to assess the upconversion mechanisms.

Paper Details

Date Published: 19 November 2003
PDF: 2 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.525851
Show Author Affiliations
Raffaella Rolli, Univ. degli Studi di Trento (Italy)
Luciano A. Bueno, Univ. Estadual Paulista (Brazil)
Sidney J. L. Ribeiro, Univ. Estadual Paulista (Brazil)
Younes Messaddeq, Univ. Estadual Paulista (Brazil)
Marco Bettinelli, Univ. degli Studi di Verona (Italy)
Adolfo Speghini, Univ. degli Studi di Verona (Italy)
Maurizio Ferrari, Univ. degli Studi di Trento (Italy)
Cristina Armellini, Univ. degli Studi di Trento (Italy)
Maurizio Montagna, Univ. degli Studi di Trento (Italy)
Giancarlo C. Righini, Istituto di Fisica Applicata Nello Carrara (Italy)
Stefano Pelli, Istituto di Fisica Applicata Nello Carrara (Italy)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life
Giancarlo C. Righini; Anna Consortini, Editor(s)

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