铒离子/镱离子共掺杂碲酸盐-锂酸盐-硼酸盐-锗酸盐玻璃的热稳定性和光谱性质研究
Investigation of thermal stability and spectroscopic properties in Er3+/Yb3+-codoped TeO2-Li2O-B2O3-GeO2 glasses.
作者信息
Nie Qiu-Hua, Gao Yuan, Xu Tie-Feng, Shen Xiang
机构信息
College of Information Science and Engineering, Ningbo University, Ningbo 315211, PR China.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2005 Jun;61(8):1939-43. doi: 10.1016/j.saa.2004.07.026.
The new Er3+/Yb3+ co-doped 70TeO2-5Li2O-(25-x)B2O3-xGeO2 (x = 0, 5, 10, 15 fand 20 mol.%) glasses were prepared. The thermal stability, absorption spectra, emission spectra and lifetime of the 4I(13/2) level of Er3+ ions were measured and studied. The FT-IR spectra were carried out in order to investigate the structure of local arrangements in glasses. It is found that the thermal stability, absorption cross-section of Yb3+, emission intensity and lifetime of the 4I(13/2) level of Er3+ increase with increasing GeO2 content in the glass composition, while the fluorescence width at half maximum (FWHM) at 1.5 um of Er3+ is about 70 nm. The obtained data suggest that this system glass can be used as a candidate host material for potential broadband optical amplifiers.
制备了新型Er3+/Yb3+共掺杂的70TeO2-5Li2O-(25-x)B2O3-xGeO2（x = 0、5、10、15和20摩尔%）玻璃。测量并研究了Er3+离子4I(13/2)能级的热稳定性、吸收光谱、发射光谱和寿命。进行了傅里叶变换红外光谱（FT-IR）分析，以研究玻璃中局部排列的结构。结果发现，随着玻璃成分中GeO2含量的增加，热稳定性、Yb3+的吸收截面、Er3+的4I(13/2)能级的发射强度和寿命均增加，而Er3+在1.5μm处的半高宽（FWHM）荧光约为70nm。所得数据表明，该体系玻璃可作为潜在宽带光放大器的候选基质材料。
Zotero 插件