Growth and spectroscopic properties of Sm3+-doped La2CaB10O19 crystal

Sm3+-doped La2CaB10O19(Sm:LCB) crystal with size of 40×25×15 mm3 has been grown by the top-seeded solution growth (TSSG) method. The absorption and fluorescence spectra of Sm:LCB were measured at room temperature, and the fundamental spectral parameters, including transition probability A, fluorescence branch ratio βc, radioactive lifetime τr, emission cross-sections σem and intensity parameters Ωt(2,4,6), have been calculated by applying the Judd-Ofelt theory. In Sm:LCB crystal, a strong 599 nm orange fluorescence emitting peak was observed under 410 nm excitation, which may be applied in the medicine and biological detection. Sm:LCB crystal may be a promising orange laser material.