Optical-transition properties of the Nd3+ ion in KLu(WO4)2 crystal

Optical absorption and emission intensities of Nd3+ ion in KLu(WO4)2 crystal were investigated. Based on the Judd-Offelt theory, we calculated the following spectral parameters: phenomenological intensity parameters Ω2=5.567×10–20, Ω4=3.597×10–20, and Ω6= 3.800×10–20 cm2. The radiative lifetime of levels 4F3/2 was 182.58 μs. The fluorescence branching ratio for the transition 4F3/2→4I11/2 was 46.98%. In addition, the radiative transition probabilities AJ,J’, oscillator strengths PJ,J’ and the values of inte...