Effect of bismuth oxide on the thermal stability and Judd-Ofelt parameters of Er 3(+)/Yb3(+) co-doped aluminophosphate glasses
文献类型：期刊论文
| 作者 | Fang YZ(房永征) ; Hu Lih ; Liao MS(廖梅松) ; Wen L(温磊) |
| 刊名 | spectroc. acta pt. a
 |
| 出版日期 | 2007 |
| 卷号 | 68期号:3页码:542 |
| 关键词 | disordered systems judd-ofelt theory optical absorption |
| ISSN号 | 1386-1425 |
| 中文摘要 | the er3+/yb3+ co-doped glasses with compositions of xbi(2)o(3)-(65-x)p2o5-4yb(2)o(3)-11al(2)o(3)-5bao-15na(2)o (where x = 0, 2.5, 5, 7.5 and 10 mol%) were prepared using the normal melt quench technique. the optical absorption spectra of the glasses were recorded in the wavelength range 300-1700 nm. the effect of bi2o3 content on the thermal stability and absorption spectra of glasses was investigated. in addition, the judd-ofelt parameters and oscillator strengths were calculated by employing judd-ofelt theory. it was observed that the positions of the fundamental absorption edge and cut-off wavelength shifted towards red as the content of bi2o3 increased. however, there were no red shifts found both in the peak wavelength and in the center of mass wavelength of all absorption bands with bi2o3 content increasing. the results of judd-ofelt theory analysis showed that judd-ofelt parameters omega(t), (t = 2, 4, 6) changed sharply when bi2o3 concentration exceeded 5 mol%. the variation trends of experimental oscillator strength were similar with those of judd-ofelt parameters as function of bi2o3 concentrations. moreover, differential scanning calorimetry experiments showed that the increases of bi2o3 content weakened the network structure and then lowered the thermal stability of the glasses. the spontaneous emission probability a(rad), branching ratio beta and the radiative lifetime tau(rad) were also calculated and analyzed. the stimulated emission cross-section of er3+ was calculated according to the mccumber theory. it was found that the stimulated emission cross-section of er3+ was monotonically increases with bi2o3 content increasing. (c) 2006 elsevier b.v. all rights reserved. |
| 学科主题 | 光学材料;光学玻璃 |
| 收录类别 | EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000250607900023 |
| 公开日期 | 2009-09-24 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/4983]  |
| 专题 | 上海光学精密机械研究所_高功率激光单元技术研发中心 |
| 推荐引用方式 GB/T 7714 | Fang YZ,Hu Lih,Liao MS,et al. Effect of bismuth oxide on the thermal stability and Judd-Ofelt parameters of Er 3(+)/Yb3(+) co-doped aluminophosphate glasses[J]. spectroc. acta pt. a,2007,68(3):542, 547. |
| APA | 房永征,Hu Lih,廖梅松,&温磊.(2007).Effect of bismuth oxide on the thermal stability and Judd-Ofelt parameters of Er 3(+)/Yb3(+) co-doped aluminophosphate glasses.spectroc. acta pt. a,68(3),542. |
| MLA | 房永征,et al."Effect of bismuth oxide on the thermal stability and Judd-Ofelt parameters of Er 3(+)/Yb3(+) co-doped aluminophosphate glasses".spectroc. acta pt. a 68.3(2007):542. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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