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Thermal, optical and spectroscopic assessment of Yb3+: NaY(MoO4)(2) single crystal as a potential diode pumped laser near 1.04 mu m

机译:Thermal, optical and spectroscopic assessment of Yb3+: NaY(MoO4)(2) single crystal as a potential diode pumped laser near 1.04 mu m

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摘要

Large crystals of pure and Yb3+ doped NaY(MoO4)(2) have been grown using the Czochralski method. The major problem with these crystals is that they are black in colour, causeing total absorption in the visible range, this was resolved by annealing and the nature of the colour defect was discussed. Measurements such as DTA, thermal expansion in different crystal lographic directions, and refractive index as a function of wavelength were investigated. The broad absorption band at about 980 nm and high value of the absorption cross-section are obtained for the Yb3+ doped crystal. The results show that Yb3+:NaY(MoO4)(2) crystal has potential as a promising laser crystal. Crown Copyright (C) 2008 Published by Elsevier Ltd. All rights reserved.

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