Tm掺杂的激光晶体生长、结构和光谱性能研究
Crystal growth, structure and spectroscopic properties of Tm doped laser crystals
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摘要: 采用顶部籽晶生长法从K2Mo3O10-B2O3助熔剂中生长出15 mm×15 mm×25 mm优质TmxGd1－xAl3(BO3)4(x=1,0.06)晶体。利用X射线单晶衍射仪测定了TmAl3(BO3)4晶体的结构。对Tm3+:GAB晶体进行定向切割，测量得到了σ和π方向的偏振的吸收和发射光谱,并根据Judd-Ofelt理论计算了Tm3+在GdAl3(BO3)4中的J-O参数、各个能级的振子强度、自发辐射几率、荧光分支比等参数。Abstract: Tm1－xGdxAl3(BO3)4 crystals were grown from the K2Mo3O10-B2O3 flux by the top-seeded solution growth (TSSG) method. The TmAl3(BO3)4 crystal structure was measured. Tm3＋:GAB was cut into samples in c-axis and polarized absorption and emission spectra were measured. Based on the Judd-Ofelt theory, the optical parameters were calculated, such as intensity parameters, oscillator strengths, radiative transition, probabilities, radiative lifetime as well as the branching．
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Key words:
- tm doped /
- grystal growth /
- spectrascopic crystal structure /
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