PMMA是常用的固体染料基质,通过添加乙醇进行改性,形成MPMMA,并对其透过率、荧光光谱、激光光谱和斜率效率进行研究.乙醇对染料的宽带荧光谱的影响较小,荧光谱的带宽为~50nm;激光光谱半宽为7—9nm,激光光谱的峰值波长随乙醇体积比改变而相应的移动;乙醇体积比存在一个最佳值(15%),使介质在600nm—750nm波段具有最好的透过率(~90%),并且获得最的斜率效率,其值为49.7%. PMMA is a common solid dye matrix, which is modified by adding ethanol to form MPMMA, and its transmittance, fluorescence, laser and slope efficiency are studied.Ethyl alcohol has little influence on the broadband fluorescence spectrum of the dye, and the fluorescence spectrum The bandwidth is ~ 50nm; the half width of the laser spectrum is 7-9nm, the peak wavelength of the laser spectrum moves correspondingly with the volume ratio of ethanol; there is an optimum value (15%) of ethanol volume ratio, Has the best transmittance (~ 90%) and obtains the most slope efficiency with a value of 49.7%.