| Tm3+/Yb3+掺杂亚碲酸盐玻璃蓝红光上转换的研究 |
| |
| 引用本文： | 牛春晖,曹望和,臧春雨,陈宝玖. Tm3+/Yb3+掺杂亚碲酸盐玻璃蓝红光上转换的研究[J]. 中国稀土学报, 2002, 20(3): 227-230 |
| |
| 作者姓名： | 牛春晖 曹望和 臧春雨 陈宝玖 |
| |
| 作者单位： | 1. 中科院长春光学精密机械与物理研究所,吉林,长春,130021
2. 大连海事大学数理系,辽宁,大连,116026 |
| |
| 摘 要： | 研究了掺Tm^3 /Yb^3 亚碲酸盐玻璃室温下的上转换发光。用970nm波长的半导体激光器作为泵浦源，得到了高效率的480nm波长上转换的荧光，通过对不同掺杂浓度样品的发光比较，发现了这种玻璃上转换发光的浓度猝灭现象，找出了这种玻璃得到高效率上转换发光的适宜浓度，并对Tm^3 的浓度猝灭现象进行了分析，通过对上转换发光强度与泵浦强度关系曲线的拟合，看到这种上转换是三光子吸收过程，这与通过能级图分析得到的结果相同，另外，也对650nm波长的转换发光进行了研究。
|
| 关 键 词： | 掺杂 亚碲酸盐玻璃 稀土 上转换发光 浓度猝灭 碲化物玻璃 钐 镱 光吸收 激光器 工作物质 |
| 文章编号： | 1000-4343(2002)03-0227-04 |
| 修稿时间： | 2001-04-26 |
Blue Light Upconversion in Tm3+/Yb3+ Codoped Tellurite Glasses |
| |
| Niu Chunhui. Blue Light Upconversion in Tm3+/Yb3+ Codoped Tellurite Glasses[J]. Journal of the Chinese Society of Rare Earths, 2002, 20(3): 227-230 |
| |
| Authors: | Niu Chunhui |
| |
| Affiliation: | Niu Chunhui~ |
| |
| Abstract: | A Tm 3+ /Yb 3+ codoped tellurite glass and its upconversion luminescence phenomenon at room temperature were studied. Under 970 nm laser diode pumping, high efficient upconversion fluorescence near 480 nm is observed. From the comparison among 480 nm upconversion fluorescence efficiences in several samples with different RE concentration, concentration quenching feature in this kind of glass is formed. The mechanism of concentration quenching may be attributed to cross relaxation of Tm 3+ . A nonlinear curve fitting to the relationship between pumped light power and upconversion emission power is performed, It is concluded that the upconversion process related to 480 nm fluorescence belongs to three photon absorption upconversion. |
| |
| Keywords: | rare earths upconversion luminescence concentration quenching tellurite glass |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
