Soda-zinc-aluminosilicate glasses doped with Tb3+, Ce3+ and Sm3+ for frequency conversion and white light generation

Simone Berneschi; Massimo Brenci; Giancarlo C. Righini; Marco Bettinelli; Adolfo Speghini; Ulises Caldiño; Enrique Álvarez; Alessandro Chiasera; Sreeramulu Valligatla; Maurizio Ferrari

doi:10.1117/12.903223

25 October 2011 Soda-zinc-aluminosilicate glasses doped with Tb³⁺, Ce³⁺, and Sm³⁺ for frequency conversion and white light generation

Simone Berneschi, Massimo Brenci, Giancarlo C. Righini, Marco Bettinelli, Adolfo Speghini, Ulises Caldiño, Enrique Álvarez, Alessandro Chiasera, Sreeramulu Valligatla, Maurizio Ferrari

Author Affiliations +

Proceedings Volume 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World; 801159 (2011) https://doi.org/10.1117/12.903223
Event: International Commission for Optics (ICO 22), 2011, Puebla, Mexico

Abstract

Sodium-zinc-aluminosilicate (NaZAS) glasses doped with single or multiple rare earth ions (Ce³⁺, Tb³⁺, Sm³⁺) were synthesized, and their characteristics investigated by m-line spectroscopy, absorption and luminescence spectroscopy, and micro-Raman spectroscopy. Blue-white light, with x = 0.24 and y = 0.24 CIE chromaticity coordinates, was obtained for the Tb³⁺ singly-doped glass excited at 351 nm. In NaZAS glasses co-doped with Ce³⁺ and Tb³⁺ it was possible to observe a non-radiative energy transfer from Ce³⁺ to Tb³⁺ ions upon 320 nm excitation; the Ce³⁺→Tb³⁺ energy transfer microscopic parameter and efficiency were obtained from the analysis of the cerium emission decay curve. Different concentrations of Ce³⁺ and Tb³⁺ ions in the same glass host give rise to blue and blue-green emissions, with different CIE coordinates. Optical waveguides were also produced in the samples by means of Ag⁺-Na⁺ ion exchange process, and characterized.

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Simone Berneschi, Massimo Brenci, Giancarlo C. Righini, Marco Bettinelli, Adolfo Speghini, Ulises Caldiño, Enrique Álvarez, Alessandro Chiasera, Sreeramulu Valligatla, and Maurizio Ferrari "Soda-zinc-aluminosilicate glasses doped with Tb³⁺, Ce³⁺, and Sm³⁺ for frequency conversion and white light generation", Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 801159 (25 October 2011); https://doi.org/10.1117/12.903223

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