Spectral properties of Nd-doped BiB_3O_6 crystal

Transparent Nd: BiB3O6 crystal has been grown by top-seeded method. The refractionindices of the crystal were measured and the parameters of chromatic dispersion were fitted. Theroom temperature absorption spectra of the crystal have been measured and compared with thatof 0.2 mol/L NdCl3 solution. According to Judd-Ofelt (JO) theory, the spectral strength parametersΩ2 = 0.1776×10-20 cm2, Ω4 = 0.1282× 10-20 cm2 and Ω6 = 0.1357× 10-20 cm2 of Nd3+ ion werefitted. The radiative transition probabilities AJ,J,, oscillator strengths fJ,J,, radiative lifetime τ andthe branching ratio /βJ, have all been calculated. Based on these parameters, the properties andapplication perspective are discussed.