Spectroscopic properties of Er3+ ions in Li6Y(BO3)3 crystal |
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| Authors: | YW Zhao XH Gong YJ Chen LX Huang YF Lin G Zhang QG Tan ZD Luo YD Huang |
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| Institution: | (1) National Engineering Research Center for Optoelectronic Crystalline Materials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P.R. China;(2) Graduate School of the Chinese Academy of Sciences, Beijing, 100039, P.R. China |
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| Abstract: | Pure and Er3+-doped Li6Y(BO3)3 single crystals have been grown by the Czochralski method. The angular relationship between the crystallographic axes and
the principal axes of the optical indicatrix has been determined. The principal refractive indices of the pure Li6Y(BO3)3 crystal have been measured. The polarized absorption and fluorescence spectra of the Er3+-doped Li6Y(BO3)3 crystal have been recorded. Spectroscopic parameters of the Er3+-doped Li6Y(BO3)3 crystal, including the intensity parameters Ωt (t=2,4,6), spontaneous emission probabilities, fluorescence branching ratios, radiative lifetimes, fluorescence quantum efficiency,
and stimulated emission cross sections have been calculated and analyzed. The results show that the Er3+-doped Li6Y(BO3)3 crystal may be a gain medium for tunable and ultra short pulse lasers around 1.55 μm.
PACS 78.20.-e; 42.70.Hj |
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