| Original Articles |
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Investigation on Nonradiative Decay of the Er3+ 4I13/2 →4I15/2 Transition in Different Tellurite Glass Matrix |
| YU Chun-Lei1;DAI Shi-Xun2;ZHOU Gang1;ZHANG Jun-Jie1;HU Li-Li1;JIANG Zhong-Hong1 |
| 1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
2College of Information Science and Engineering, Ningbo University, Ningbo 315211 |
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| Cite this article: |
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YU Chun-Lei, DAI Shi-Xun, ZHOU Gang et al 2005 Chin. Phys. Lett. 22 2926-2928 |
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Abstract Three kinds of Er3-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 Ω5 (t=2,4,6) for all the samples are calculated and compared. The nonradiative decay rate of the Er3+ 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 Er3+ is analysed, the constant KOH-Er of TWN, TZPL and TZL glasses are calculated to be 9.2×10-19cm4s-1, 5.9×10-19cm4s-1, and 3.5×10-19cm4s-1, respectively.
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| Keywords:
73.43.Fj
74.25.Gz
73.61.Jc
78.20.-e
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Published: 01 November 2005
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| PACS: |
73.43.Fj
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(Novel experimental methods; measurements)
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74.25.Gz
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(Optical properties)
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73.61.Jc
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(Amorphous semiconductors; glasses)
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78.20.-e
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(Optical properties of bulk materials and thin films)
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