Journal
MATERIALS LETTERS
Volume 64, Issue 21, Pages 2363-2365Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2010.07.076
Keywords
Rare-earth ions; Doped crystals; Absorption spectra; Birefringence
Funding
- Polish Ministry of Sciences and Higher Education [POIG.01.03.01-14-016/08]
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K5Nd(MoO4)(4) crystals with different Yb3+ concentrations were grown using Czochralski technique. Room-temperature absorption spectra were recorded and assigned on the basis of Dieke's diagram for Nd3+ ion; the standard Judd-Ofelt theory has been used to analyze the spectra. Increase of Yb3+ concentration leads to variation of the corresponding Judd-Ofelt intensity parameters. Significant contribution of the Yb-Nd energy transfer into the formation of the Nd3+ absorption spectra causes the observed changes. After illumination of the crystals with CW Nd:YAG laser changes of the birefringence for the laser line of CW He-Ne laser at 633 nm were studied. Birefringence changes show good correlation with the content of Yb ions. (C) 2010 Elsevier By. All rights reserved.
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