Crystal growth and spectral properties of Nd3+:Sr3Gd(BO3)3 crystal

A crystal of Nd3+:Sr3Gd(BO3)3 with dimension of ϕ25 × 30 mm3 was grown by the Czochralski method. The polarized absorption and emission spectra of Nd3+:Sr3Gd(BO3)3 crystal were measured at room temperature. The absorption cross sections σa are 3.43 × 10−20 cm2 at 807 nm for π-polarization and 1.78 × 10−20 cm2 for σ-polarization, respectively. The emission cross sections σem are 2.0 × 10−19 cm2 at 1063 nm for π-polarization and 1.12 × 10−19 cm2 for σ-polarization, respectively. Fluorescence lifetime τf is 70 μs at room temperature.