Applied Physics B

, 91:437 | Cite as

Multicolor upconversion emission from Tm3++Ho3++Yb3+ codoped tellurite glass on NIR excitations

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Abstract

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.

Keywords

Blue Emission Tellurite Glass Upconversion Emission Dope Glass White Emission 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.Laser and Spectroscopy LaboratoryDepartment of Physics BHUVaranasiIndia

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