Characteristic Investigations of Stoichiometric LiNbO3 Single Crystal Fiber Co-Doped with Tb and Mn
Materials Science Forum(2004)
Abstract
[MnO2(1.0mol%) : Tb4O7(0.5mo%)] doped stoichiometric LiNbO3 (Mn:Tb:SLN) single crystals of 0.5similar to1.0 mm in diameter and 30similar to35 mm in length were grown by micro pulling down(mu-PD) method. We investigated the photoluminescence (PI,) properties of Mn:Tb:SLN single crystal. The OH- absorption band of the single crystals observed infrared the absorption spectra by using an FT-IR spectrophotometer at room temperature. Homogeneous distributions of Mn and Tb concentration were confirmed by the EPMA and observed defects by optical microscopy.
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Key words
single crystal,micro pulling down method,photoluminescence,FT-IR
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