采用坩埚下降法生长出大尺寸Er: PbWO_4晶体,通过对晶体顶端和靠近晶种端的吸收光谱、自发拉曼散射光谱、荧光发射寿命和980 nm LD泵浦下红外荧光光谱的测试,分析讨论了Er: PbWO_4晶体的自拉曼光谱性质.对纯PbWO_4晶体的自发拉曼散射光谱的振动模式进行了简单的分析和指认,指出其强度最大的振动模位于903 cm~(-1),对应于W-O对称伸缩振动模Ag.结合Er~(3+)的红外波段荧光光谱及荧光寿命的测试,研究了介质PbWO_4将Er~(3+)的1.5 μm发光拉曼频移获得中红外发光的可能性.
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