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针对现有复合固态染料激光介质光学加工性能差和残余溶剂小分子引起严重非辐射跃迁而降低有机光学活性物质量子产率的缺陷 ,本文应用甲基三乙氧基硅烷 CH3 Si(OC2 H5 ) 3(MTES)作为有机改性剂 ,研究了甲基改性 Si O2 凝胶玻璃基质及染料掺杂复合激光介质的制备工艺以及对有机光学活性物质的热学和荧光性能的影响。结果表明 ,由于甲基的影响 ,缩聚反应速度成为以纯 MTES为先驱物制备光学均匀复合固态染料激光介质的关键控制因素 ,甲基改性复合固态染料激光介质可进行较高温度热处理 ,经适当温度热处理后 ,染料的荧光强度有较大提高。
In order to reduce the quantum yield of organic opto-optical active material due to the poor optical processing ability of the existing composite solid-state dye laser medium and the serious non-radiative transition caused by small residual solvent molecules, methyltriethoxysilane CH3 Si (OC2 H5) 3 (MTES) as organic modifier, the preparation process of methyl-modified Si O2 gel glass matrix and dye-doped composite laser medium and the effect on thermal and fluorescence properties of organic optical active materials were studied. The results show that due to the influence of methyl group, the polycondensation reaction rate becomes the key control factor for the preparation of optically homogeneous composite solid state dye laser medium with pure MTES as the precursor. The methyl modified composite solid state dye laser medium can be subjected to higher temperature heat treatment, After heat treatment, the fluorescence intensity of the dye is greatly increased.