Growth and Luminescent Properties of NaGd(WO4)2:Yb3+ Crystals

Author: Voron'ko Yu. K.   Zharikov E. V.   Lis D. A.   Sobol' A. A.   Subbotin K. A.   Ushakov S. N.   Shukshin V. E.   Dröge S.  

Publisher: MAIK Nauka/Interperiodica

ISSN: 0020-1685

Source: Inorganic Materials, Vol.39, Iss.12, 2003-12, pp. : 1308-1314

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Abstract

Data are presented on the spectroscopic properties of Yb3+-activated NaGd(WO4)2, a disordered scheelite-like tungstate potentially attractive as a gain medium. NaGd(WO4)2:Yb3+ crystals are grown by the Czochralski technique. The polarized absorption and luminescence spectra and the luminescence decay kinetics of oriented samples with different Yb3+ concentrations are studied at 300 K. The gain coefficients are calculated for different populations of the upper lasing level 2F5/2 of the Yb3+ ion.

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