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Proceedings Paper

White light and three-color (RGB) generation by upconversion in fluorogermanate glass for solid state three-dimensional displays
Author(s): Artur da S. Gouveia-Neto; Luciano A. Bueno; Raphael F. do Nascimento; Elias A. da Silva; Valberes B. do Nascimento; Ernande B. Costa
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Paper Abstract

White light was produced exploiting additive synthesis of red, green, and blue(RGB) fluorescence generated through frequency upconversion in fluorogermanate glass samples co-doped with Ho3+, Tm3+ and Yb3+, and excited by a single source of near-infrared radiation. The blue(475 nm), green(540 nm), and red(650 nm), upconversion luminescence signals were, respectively, assigned to thulium(1G4 - 3H6), and holmium(5S2;5F4) → 5I8, 5F55I8) ions, both excited via successive energy-transfers from ytterbium ions. The Tm3+, Ho3+, and Yb3+ concentrations in the glass host were adjusted yielding the emission of a wide color gamut in the visible spectrum, and the production of white light using a single infrared source of excitation at 975 nm.

Paper Details

Date Published: 5 February 2008
PDF: 5 pages
Proc. SPIE 6890, Optical Components and Materials V, 68900L (5 February 2008); doi: 10.1117/12.759680
Show Author Affiliations
Artur da S. Gouveia-Neto, Univ. Federal Rural de Pernambuco (Brazil)
Luciano A. Bueno, Univ. Federal Rural de Pernambuco (Brazil)
Raphael F. do Nascimento, Univ. Federal Rural de Pernambuco (Brazil)
Elias A. da Silva, Univ. Federal Rural de Pernambuco (Brazil)
Valberes B. do Nascimento, Univ. Federal Rural de Pernambuco (Brazil)
Ernande B. Costa, Univ. Federal Rural de Pernambuco (Brazil)

Published in SPIE Proceedings Vol. 6890:
Optical Components and Materials V
Michel J. F. Digonnet; Shibin Jiang; John W. Glesener; J. Christopher Dries, Editor(s)

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