TmYb共掺氟氧化物玻璃的间接上转换敏化发光的研究

研究了Tm(0.1)Yb(10.9)氟氧化物玻璃在800nm半导体激光激发下的间接上转换敏化发光现象.通过Tm(0.1)Yb(3)：ZBLAN玻璃和Tm(0.1)Yb(10.9)氟氧化物玻璃中Tm³⁺离子上转换发光的比较研究，发现在间接上转换敏化的情况下，Tm(0.1)Yb(10.9)氟氧化物玻璃中Tm³⁺离子的上转换发光极大地增强，超过了Tm(0.1)Yb(3)：ZBLAN玻璃的水平.说明在此类上转换激发机制下，有着较高的稀土溶解度和较大的截止声子能量的材料可能有最佳的上转换效率，它将可能有比目前最好的ZBLAN材料高许多的上转换发光强度，这对于上转换研究迅速走向实际应用有重大的意义.目前尚未见到其他类似研究报道. 关键词：

THE INDIRECT UPCONVERSION-SENSITIZATION LUMINESCENCE RESEARCH OF Tm,Yb CODOPED OXYFLUORIDE GLASSES

In this paper we study the indirect upconversion-sensitization luminescence of Tm(0.1)Yb(10.9)：oxyfluoride glass induced by 800nm diode laser. Through the comparison between Tm(0.1)Yb(10.9)：oxyfluoride and Tm(0.1)Yb(3)：ZBLAN glasses we found that the upconversion luminescence intensity of Tm(0.1)Yb(10.9)：oxyfluoride glass was greatly enhanced and exceeded the level of Tm(0.1)Yb(3)：ZBLAN glass under the condition of indirect upconversion-sensitization. The results illustrated that under this kind of upconversion mechanism, it is possible to find some kind of material which has higher rare earth doped concentration and cut-off phonon energy, thus showing much higher upconversion efficiency than ZBLAN. This work and the results obtained will be helpful to promote the upconversion research to practical application. To our best knowledge, there have not been similar works published domestically and a broad.