期刊
APPLIED PHYSICS B-LASERS AND OPTICS
卷 91, 期 3-4, 页码 437-441出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00340-008-3023-5
关键词
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Multicolor emission has been produced using 798 nm and 980 nm laser excitation in a Tm3++Ho3++Yb3+ codoped tellurite based glass. This glass generates simultaneously red, green and blue (RGB) emission on 798 nm excitation. Multicolor emission thus obtained was tuned to white luminescence by adjusting the Ho3+ ion concentration. There is a close match between the calculated color coordinate for the white luminescence obtained here and the point of equal energy which represents white in the 1931 CIE chromaticity diagram. The 980 nm excitation of the same sample on the other hand gives intense green and red emission and the glass appears greenish.
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