| Investigation on Nonradiative Decay of the Er^3＋^4I13/2 → ^4I15/2 Transition in Different Tellurite Glass Matrix |
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| 引用本文： | 于春雷,戴世勋,周刚,张军杰,胡丽丽,姜中宏.Investigation on Nonradiative Decay of the Er^3＋^4I13/2 → ^4I15/2 Transition in Different Tellurite Glass Matrix[J].中国物理快报,2005,22(11):2926-2928. |
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| 作者姓名： | 于春雷 戴世勋 周刚 张军杰 胡丽丽 姜中宏 |
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| 作者单位： | [1]Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 [2]College of Information Science and Engineering, Ningbo University, Ningbo 315211 |
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| 基金项目： | Project supported by the Qimingxing Program of Science and Technology of Shanghai, China （Grant No. 04QMX1448）. |
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| 摘 要： | Three kinds of Er^3＋-doped tellurite glasses with different hydroxyl groups are prepared by the conventional melt-quenching method. Infrared spectra are measured to estimate the exact content of OH^- groups in samples. The maximum phonon energy in glasses are obtained by measuring the Raman scattering spectra. The strength parameters Ωt （t = 2, 4, 6） for all the samples are calculated and compared. The nonradiative decay rate of the Er^3＋ ^4I13/2 → ^4I15/2 transition are calculated for the glass samples with different phonon energy and OH^- group contents. Finally, the effect of OH^- groups on fluorescence decay rate of Er^3＋ is analysed, the constant KOH-Er of TWN, TZPL and TZL glasses are calculated to be 9.2 × 10^-19 cm^4s^-1, 5.9 × 10^-19 cm^4s^-1, and 3.5 × 10^-19 cm^4s^-1, respectively.
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| 关 键 词： | 非辐射衰退 亚碲酸盐玻璃 红外光谱 氢氧基群 声子能量 光谱散射 |
| 收稿时间： | 2005-05-14 |
| 修稿时间： | 2005-05-14 |
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