Optical and spectroscopic properties of Ytterbium-doped YAG

The refractive indices of Yb:YAG crystals for 0, 1, 3, 5, 7, and 10 at. % Yb were measured from 0.4-5.2 microns. The coefficients for the Sellmeier fit are reported. The absorption at room temperature was measured from .185-3.3 microns. Using the index and spectroscopic data, the oscillator strengths for the samples were calculated, and their dependence on dopant concentration examined.

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