Abstract
The absorption spectra, fluorescence spectrum and fluorescence decay curve of Nd 3+ ions in anisotropic monoclinic crystal La 2(WO 4) 3 were measured at room temperature. Taking the optical anisotropism into account, the spectroscopic parameters, such as intensity parameters Ω t ( t=2,4,6), spontaneous emission probability, fluorescence branching ratio, radiative lifetime and fluorescence quantum efficiency were obtained by the Judd–Ofelt theory. The stimulated emission cross-section at 1058 nm wavelength was calculated to be 1.12 × 10 −19 cm 2. The good spectroscopic properties show that the Nd 3+:La 2(WO 4) 3 crystal is a good candidate of solid-state laser and self-stimulated Raman laser media.
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