Growth and laser properties of Nd~(3+):Sr_6YSc(BO_3)_6 crystal

摘要

The crystal of Nd~(3+):Sr_6YSc(BO_3)_6 with dimensions of Φ19 x 42 mm~3 was grown by the Czochralski method. It's spectral and laser properties have been investigated. The absorption cross section is 1.47 x 10~(-20) cm~2 with a FWHM 12.0nm at 807 nm, the emission cross section is 1.57 x 10~(-19) cm~2 at 1060 nm, and the fluorescence lifetime is 76 μs at room temperature. The maximum laser output is 25.7 mJ at 1.06 μm pumped by a single Xenon flash lamp and the overall and average slope efficiencies are 0.12% and 0.09%, respectively. The laser energy threshold value is 1.28 J.