Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9837760 | Physica B: Condensed Matter | 2005 | 6 Pages |
Abstract
Structural and upconversion fluorescence properties in ytterbium-sensitized thulium-doped oxychloride germanate glass have been studied. The structure of oxychloride germanate glass was investigated by peak-deconvolution of Raman spectrum, and the structural information was obtained from the peak wavenumbers. The Raman spectrum investigation indicates that PbCl2 plays an important role in the formation of glass network, and has an important influence on the upconversion luminescence. Intense blue and weak red emissions centered at 477 and 650Â nm, corresponding to the transitions 1G4â3H6 and 1G4â3H4, respectively, were observed at room temperature. The possible upconversion mechanisms are discussed and estimated. Intense upconversion luminescence indicates that oxychloride germanate glass can be used as potential host material for upconversion lasers.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Hongtao Sun, Liyan Zhanga, Junjie Zhang, Lei Wen, Chunlei Yu, Zhongchao Duan, Shixun Dai, Lili Hu, Zhonghong Jiang,