Abstract
Abstract A crystal of Yb 3+ :Sr 6 YSc(BO 3 ) 6 was grown successfully from Li 6 B 4 O 9 flux by the top-seeded solution growth method. The crystal's thermal, mechanical and spectral characteristics were investigated in detail. It possesses small thermal expansion coefficients, moderate thermal conductivities, and large hardness. The crystal has a strong absorption band at 967 nm with a full width at half-maximum of about 3.4 nm. The crystal has a broad emission band at 1016 nm with the full width at half-maximum of about 64 nm. The emission cross sections were calculated by reciprocity method and Fuchtbauer-Ladenburg formula. The fluorescence lifetime is 5.98 ms. The results reveal that Yb 3+ :Sr 6 YSc(BO 3 ) 6 crystal is a new promising tunable and ultrashort pulse laser crystal.
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