Upconversion fluorescence property of Er3+/Yb3+-codoped novel bismuth-germanium glass
Data(s) |
2005
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Resumo |
Infrared-to-visible upconversion fluorescence property of Er3+/Yb3+ codoped novel bismuth-germanium glass under 975 nm LD excitation has been studied. Intense green and red emissions centered at 525, 546 and 657 nm, corresponding to the transitions H-2(11/2) -> I-4(15/2), S-4(3/2) -> I-4(15/2), and F-4(9/2) -> I-4(15/2), respectively, were observed at room temperature. The quadratic dependence of the 525, 546 and 657 nm emissions on excitation power indicates that a two-photon absorption process occurs. The structure of the bismuth-germanium glass has been investigated by peak-deconvolution of FT-Raman spectrum, and the structural information was obtained from the peak wavenumbers. This novel bismuth-germanium glass with low maximum phonon energy (similar to 750 cm(-1)) can be used as potential host material for upconversion lasers. (c) 2005 Elsevier Ltd. All rights reserved. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
孙洪涛;张丽艳;张军杰;温磊;于春雷;戴世勋;胡丽丽;姜中宏.,Solid State Commun.,2005,133(12):781-784 |
Palavras-Chave | #glasses #optical materials #optical properties #luminescence |
Tipo |
期刊论文 |