UP-CONVERSION FLUORESCENCE IN Er-DOPED CHALCOGENIDE GLASSES BASED ON GeS2-Ga2S3 SYSTEM

Up-conversion fluorescence excited with 813 and 1550 nm light is investigated in glasses of the Ga2S3-GeS2-Er2S3 system. The influence of the glassy matrix composition and Er concentration on the luminescence and absorption spectra is studied. Increasing Ga content relative to Ge decreases Er concen...

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Bibliographic Details
Published in:Journal of non-crystalline solids 2001, Vol.286 (1-2), p.89-92
Main Authors: Tverjanovich, A, Grigoriev Ya, G, Degtyarev, S V, Kurochkin, A V, Man'shina, A A, Tver'yanovich Yu, S
Format: Article
Language:English
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Summary:Up-conversion fluorescence excited with 813 and 1550 nm light is investigated in glasses of the Ga2S3-GeS2-Er2S3 system. The influence of the glassy matrix composition and Er concentration on the luminescence and absorption spectra is studied. Increasing Ga content relative to Ge decreases Er concentration quenching effect. The efficiency of up-conversion fluorescence has a strong dependence on thermal history of the sample. Annealing the glasses and decreasing the synthesis temperature increase luminescence intensity. 10 refs.
ISSN:0022-3093
DOI:10.1016/S0022-3093(01)00483-5