采用溶胶-凝胶法制备Er∶YbGG纳米粉体，利用XRD、TG-DTA、IR和SEM等测试手段分析了Er∶YbGG纳米粉体的物相结构和光谱性能。 结果表明：Er∶YbGG纳米粉体属于立方晶系，空间群为Ia-3d，晶格参数a=1.216 2 nm。在980 nm激光激发下，Er∶YbGG纳米粉体在1 533 nm附近获得了较强的发射，其较高的发射强度得益于Yb3+-Er3+离子之间的能量传递。

Er∶YbGG nanopowder was prepared by sol-gel method. XRD, TG-DTA, SEM and spectra analysis were utilized to investigate the phase structure and spectrum properties of the powder. The experiment results indicate that the fine Er∶YbGG nanopowder belongs to a cubic phase with a space group of Ia-3d and lattice parameter a=1.216 2 nm. Under 980 nm excitation, an intensive fluorescence emission peak appears near 1 533 nm in the emission spetrum of Er∶YbGG nanopowder, and the high intensity of the emission is attributed to the energy transmission between Yb3+ and Er3+ ions.