Crystal growth and spectral properties of Sm:GdVO4

The 2 at.% Sm:GdVO4 crystal was grown by the Czochralski method. The segregation coefficient of Sm3+ ion in this crystal is 0.98. The crystal structure of the Sm:GdVO4 crystal was determined by X-ray diffraction analysis. Judd–Ofelt theory was used to calculate the intensity parameters (Ωi), the spontaneous emission probability, the luminary branching ratio and the radiative lifetime of the state 4G5/2. The stimulated emission cross-sections at 567, 604 and 646 nm are calculated to be 5.92 × 10−21, 7.62 × 10−21 and 5.88 × 10−21 cm2, respectively. The emission cross-section at 604 nm is 4.4 times lager than that in Sm:YAP at 607 nm.