摘要
High quality optical single crystals of cubic Yb_(2.96)Er_(0.04)Al_(5)O_(12)and Y_(2.96)Er_(0.04)A_(l5)O_(12)were successfully pre-pared using the OFZ method.The 980 nm photon absorption intensity by Yb_(2.96)Er_(0.04)Al_(5)O_(12)crystal is much larger than that in Y_(2.96)Er_(0.04)A_(l5)O_(12)crystal,the transmission of Yb_(2.96)Er_(0.04)Al_(5)O_(12)crystal is lower than that of Y_(2.96)Er_(0.04)A_(l5)O_(12)crystal,because the density of Yb_(2.96)Er_(0.04)Al_(5)O_(12)single crystal(6.604 g/cm^(3))is larger than that of Y_(2.96)Er_(0.04)A_(l5)O_(12)single crystal(4.529 g/cm^(3)).The up-conversion luminescence spec-tra of the crystals excited by 980 nm laser show several distinct groups of emission peaks at-544 and-556 nm,as well as-650 and-667 nm.The peak intensities of the up-conversion luminescence spec-trum for the Yb_(2.96)Er_(0.04)Al_(5)O_(12)crystal were much higher than those for the Y_(2.96)Er_(0.04)A_(l5)O_(12)crystal.Over-all,the results of the present study suggest that Yb_(2.96)Er_(0.04)Al_(5)O_(12)single crystal may have advantages over Y_(2.96)Er_(0.04)A_(l5)O_(12)single crystal for luminescence in solid-state lasers.
基金
supported by the National Natural Science Foundations of China(Nos.12175047 and 11975004)
the Science and Technology Foundation of Guangxi University,China(No.2023BZXM003).
