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Enhancement of Er3+ Luminescence in LiNbO3:Mg Crystals |
| ZHAO Li-Juan1,2;YANG Jian1;XU Jing-Jun1;HUANG Hui1;ZHANG Guang-Yin1,2 |
| 1Photonics Research Center, College of Physical Science, Nankai University, Tianjin 300071
2State Key Laboratory of Rare Earth Materials Chemistry and Applications, Beijing University, Beijing 100871
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| Cite this article: |
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ZHAO Li-Juan, YANG Jian, XU Jing-Jun et al 2001 Chin. Phys. Lett. 18 1205-1207 |
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Abstract The luminescent properties of Er3+ ions in LiNbO3:Er and LiNbO3:Mg,Er crystals at room temperature were investigated by the emission spectra and the selective excitation spectra. The energy transition processes of Er3+ luminescence were analysed. It is found that the luminescent intensity of Er3+ ions in the LiNbO3:Mg,Er crystal is increased up to 7.8 times compared with that in the LiNbO3:Er crystal. Decrease of the defect center (NbLi) concentration due to doping with Mg2+ ions plays a key role in this phenomenon.
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| Keywords:
33.50.Dq
42.70.Nq
78.20.Ek
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Published: 01 September 2001
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| PACS: |
33.50.Dq
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(Fluorescence and phosphorescence spectra)
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42.70.Nq
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(Other nonlinear optical materials; photorefractive and semiconductor materials)
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78.20.Ek
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(Optical activity)
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