钨酸钕单晶光谱及其上转换发光

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采用提拉法生长出钨酸钕Nd2(WO4)3单晶,通过光谱测试研究了Nd^3+的能级结构,采用波长为808nm激光二极管作为激发光源,室温下观测到457和657nm两个波段的上转换荧光,分别相应于^2D5/2→^4I11/2和 ^2G7/2→^4I9/2跃迁,457和657nm处的上转移荧光强度与激发光功率分别成线性关系和平方关系。
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