| Effect of lithium-potassium mixed alkali on spectroscopic properties of Er^3＋-doped aluminophosphate glasses |
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| 引用本文： | 房永征,廖梅松,胡丽丽.Effect of lithium-potassium mixed alkali on spectroscopic properties of Er^3＋-doped aluminophosphate glasses[J].中国物理 B,2007,16(6):1736-1742. |
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| 作者姓名： | 房永征 廖梅松 胡丽丽 |
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| 作者单位： | Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Graduate School of the Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Technology, Shanghai 200023,
China;Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Graduate School of the Chinese Academy of Sciences, Shanghai 201800, China;Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Graduate School of the Chinese Academy of Sciences, Shanghai 201800, China |
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| 基金项目： | Project supported by
the Young Teacher Foundation of Shanghai Education Committee (Grant
No 04YQHB162) and the National Natural Science Foundation of China
(Grant No 50572110). |
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| 摘 要： | Er^3＋-doped lithium-potassium mixed alkali aluminophosphate glasses belonging to the oxide system xK2O-（15-x）Li2O-4B2O3-11Al2O3-5BaO-65P2O5 are obtained in a semi-continuous melting quenching process. Spectroscopic properties of Er^3＋-doped glass matrix have been analysed by fitting the experimental data with the standard Judd-Ofelt theory. It is observed that Judd-Ofelt intensity parameters Ωt（t = 2, 4 and 6） of Er^3＋ change when the second alkali is introduced into glass matrix. The variation of line strength Sed^4I13/2,^4I15/2] follows the same trend as that of the/26 parameter. The effect of mixed alkali on the spectroscopic properties of the aluminophosphate glasses, such as absorption cross-section, stimulated emission cross-section, spontaneous emission probability, branching ratio and the radiative lifetime, has also been investigated in this paper.
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| 关 键 词： | 锂-钾混合碱 铒掺杂 磷酸铝玻璃 光谱特性 |
| 收稿时间： | 2006-10-20 |
| 修稿时间： | 2006-10-202006-12-29 |
Effect of lithium-potassium mixed alkali on spectroscopic properties of Er3+-doped aluminophosphate glasses |
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| Fang Yong-Zheng,Liao Mei-Song and Hu Li-Li.Effect of lithium-potassium mixed alkali on spectroscopic properties of Er3+-doped aluminophosphate glasses[J].Chinese Physics B,2007,16(6):1736-1742. |
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| Authors: | Fang Yong-Zheng Liao Mei-Song and Hu Li-Li |
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| Institution: | 1.Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Graduate School of the Chinese Academy of Sciences, Shanghai 201800, China ;2.Shanghai Institute of Technology, Shanghai 200023, China |
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| Abstract: | Er$^{3+}$-doped lithium-potassium mixed alkali aluminophosphate
glasses belonging to the oxide system
$x$K$_2$O-(15-$x$)Li$_2$O-4B$_2$O$_3$-11Al$_2$O$_3$-5BaO-65P$_2$O$_5$
are obtained in a semi-continuous melting quenching process.
Spectroscopic properties of Er$^{3+}$-doped glass matrix have been
analysed by fitting the experimental data with the standard
Judd--Ofelt theory. It is observed that Judd--Ofelt intensity
parameters ${\it\Omega}_ t (t= 2$, 4 and 6) of Er$^{3+}$ change when
the second alkali is introduced into glass matrix. The variation of
line strength $S_{\rm ed}$$^4$I$_{13/2}$,$^4$I$_{15/2}$] follows the
same trend as that of the ${\it\Omega}_6$ parameter. The effect of
mixed alkali on the spectroscopic properties of the aluminophosphate
glasses, such as absorption cross-section, stimulated emission
cross-section, spontaneous emission probability, branching ratio and
the radiative lifetime, has also been investigated in this paper. |
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| Keywords: | non-crystalline materials mixed
alkali radiative lifetime Judd--Ofelt theory |
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