摘要
以Yb3+-Er3+共掺的B2O3 -P2O5 -MO-R2O-Al2O3 (M=Zn,Ca,Sr,Ba;R=Li,Na,K)玻璃系统为研究对象,分别分析了B2O3 的含量以及加入不同种类的碱金属和碱土金属氧化物对玻璃的光谱性质的影响.研究结果表明,随着B2O3 含量的提高,玻璃的自发辐射跃迁几率降低,辐射寿命增长,但吸收截面、相应的积分吸收截面和发射截面减小,玻璃的折射率在B2O3 含量为15% (摩尔分数)时达到极小值.随着修饰体阳离子场强的升高,吸收截面和发射截面有增大趋势.
The effects of B 2O 3 content and different modifiers (alkali metals and alkaline earth oxides) on the spectroscopic properties of Yb 3+ -Er 3+ co-doped B 2O 3-P 2O 5-MO-R 2O-Al 2O 3(M=Zn,Ca,Sr,Ba;R=Li,Na,K)system were respectively analyzed. The results indicate that, with the increase in B 2O 3 content, the radiation lifetime increases, while the spontaneous emission probability, the absorption cross-section, the corresponding integral absorption cross-section and emission cross-section all decrease, that the refraction index reaches its minimum when the mole fraction of B 2O 3 is 15%, and also that the absorption cross-section and the emission cross-section increase with the electric field intensity of the modifier cation.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2005年第3期9-12,27,共5页
Journal of South China University of Technology(Natural Science Edition)
基金
广东省自然科学基金资助项目 (013013)
广东省科技计划资助项目(2002B11604)
