激光染料可以应用于可调谐放大激光器,应用时激光染料通常需要溶解于有机溶剂,这种流动体系限制了激光器的小型化,也不利于环境保护.因此,科研工作者尝试将激光染料组装、掺杂到诸如无机物、有机聚合物以及溶胶一凝胶等固态主体材料中,构成主客体复合结构.与在液态中的情况不同,染料分子在固态介质中由于热振动而引发的能量损耗较少,因而其稳定性有所提高,同时染料分子的聚合现象也显著降低.通常染料的激光发射波长都相对于其荧光发射波长发生显著红移.
A simple process were applied to the preparation of transparent meso-structure silica film which doped with laser dye at room temperatrue by solvent evaporation method. The SAXRD pattern of the film doped with Cou 151 indicates that the film retain mesopores structures. In the composite, the dye molecules were mono-disperse in the channels of meso-structure silica which was determined by blue shift in UV spectra. Red-shift in the PL spectrum was observed for the composite film compared with that of dye/CHCl3 solution and this strong fluorescence can take an important action in state dye laser and in optical sensors.