Fiber single crystal growth by LHPG technique and optical characterization of Ce3+-doped Lu2SiO5

Abstract The laser heated pedestal growth (LHPG) technique has been applied to grow undoped and doped Lu 2 SiO 5 :Ce 3+ (LSO:Ce) single crystals fibers with stable diameter. The starting cerium concentration in the melt was [0.05–1] at.%. The thermal and growth conditions allowing pulling transparent single crystals fiber’s were optimised. The fibers have been grown under N 2 + 1% O 2 atmosphere (1 bar). The Ce 3+ segregation coefficient is 0.28 greater than the crystal grown by Czochralski technique. The as grown fibers demonstrated scintillating properties.