Spectroscopic properties of Nd3+ ions in La2(WO4)3 crystal

The absorption spectra, fluorescence spectrum and fluorescence decay curve of Nd3+ ions in anisotropic monoclinic crystal La2(WO4)3 were measured at room temperature. Taking the optical anisotropism into account, the spectroscopic parameters, such as intensity parameters Ωt (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 cm2. The good spectroscopic properties show that the Nd3+:La2(WO4)3 crystal is a good candidate of solid-state laser and self-stimulated Raman laser media.