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中文摘要：
用提拉法成功生长出了Nd：Gd3Ga5O12晶体,并通过激光显微拉曼光谱对其结构进行了研究.使用Ar^＋激光的325.0和514.5 nm波长激发,区分开了荧光峰与拉曼峰,对出现的荧光峰进行了分析与讨论,将其中的拉曼振动峰与Gd3Ga2（GaO4）3（GGG）晶体四面体、八面体和十二面体的结构相联系,并对其振动模式进行了分类和指认,为将来进一步研究Nd：GGG晶体生长时固液边界层的结构及生长基元在边界层内的变化规律奠定了一定的基础.
英文摘要：
The Nd：GGG crystal was grown successfully by the Czochralski method, and its structure was studied by laser Micro-Rarnan spectra. The Raman peaks and fluorescence peaks were discerned by using two excitation wavelengths （Ar^＋ 325 nm and 514.5 nm）,the appeared fluorescence peaks were analyzed the tetrahedral,octahedral and dodecahedral structure of Nd：GGG crystal were contacted with the Raman peaks,and the vibration modes were also recognized. The obtained results are helpful to research the structure of solid-liquid boundary layer during the Nd：GGG growth and the change rule of the growth unit in the boundary layer.
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