Frequency upconversion in Nd3+-doped fluoroindate glass
Nenhuma Miniatura disponível
Data
1997-05-12
Autores
De S Menezes, L.
De Araújo, Cid B.
Messaddeq, Younes [UNESP]
Aegerter, M. A.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
We report the observation of frequency upconversion in fluoroindate glasses with the following compositions: (mol%) (39 - x)InF3-20ZnF2-20SrF2-16BaF 2-2GdF3-2NaF-1GaF3-xNdF3 (x = 0.05, 0.1, 0.5, 1, 2, 3). The excitation source was a dye laser in resonance with the 4I9/2→(2G5/2, 2G7/2) transition of the Nd3+ ions. The upconverted fluorescence spectra show emissions from ∼ 350 to ∼ 450 nm, corresponding to transitions 4D3/2→4I9/2 ;4D3/2→4I11/2; 2P3/2→ 4I9/2; 4D3/2→4I13/2; 2P3/2→4I11/2; 4D3/2→4I15/2; and 2P3/2 → 4I13/2. The dependence of the fluorescence signals on the laser intensity indicates that two laser photons participate in the process. The temporal behavior of the signal indicates that energy transfer among the Nd3+ ions is the main mechanism which contributes to upconversion at 354 and 382 nm.
Descrição
Palavras-chave
Composition, Doping (additives), Dye lasers, Fluorescence, Indium compounds, Ions, Light emission, Light sources, Neodymium, Optical frequency conversion, Photons, Resonance, Fluoroindate glass, Frequency upconversion, Optical glass
Como citar
Journal of Non-Crystalline Solids, v. 213-214, p. 256-260.