采用熔盐焙烧法制得了不同掺杂浓度的Mn:MgAl2O4超细粉体,采用真空烧结法制得Mn:MgAl2O4透明陶瓷.通过紫外可见分光计、扫描电镜、荧光分光计等测试手段研究了可望用于可见波段的新型激光材料Mn:MgAl2O4透明陶瓷的光学透过率、微观形貌和光荧光特性.结果表明,通过简单的制备工艺可制得光学特性均一的Mn:MgAl2O4透明陶瓷,并且与单晶相比Mn:MgAl2O4透明陶瓷存在两条发光通道,一个中心在520 nm附近很强的荧光峰,其强度随着掺杂浓度的增加而加强;一个是中心在690 nm附近处微弱的荧光峰.这两条发光通道不是独立的,这与单晶是不相同的.
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