Spectroscopic properties of and energy transfer in PbO-Bi2O3-Ga2O3 glass doped with Er2O3
SCIE
SCOPUS
- Title
- Spectroscopic properties of and energy transfer in PbO-Bi2O3-Ga2O3 glass doped with Er2O3
- Authors
- Choi, YG; Kim, KH; Heo, J
- Date Issued
- 1999-10
- Publisher
- AMER CERAMIC SOC
- Abstract
- Er2O3-doped PbO-Bi2O3-Ga2O3 glasses were prepared through the conventional melt-quenching method, and the energy transfer mechanisms in Er3+ were investigated. The fluorescent emission at 2.73 mu m, which is normally quenched in silicate glasses, became evident because of the low phonon energy of PbO-Bi2O3-Ga2O3 glasses. The measured lifetime of the upper level of I-4(11/2) was 0.9 ms, and it decreased to similar to 0.6 ms with increased Er3+ concentration. When the concentration of Er2O3 was 0.05 wt%, the coefficient of the cross-relaxation rate for the I-4(11/2) level was similar to 18 times larger than that of the I-4(13/2) level. On the other hand, the interaction parameter of energy migration was considerably larger for the I-4(13/2) level (similar to 52 x 10(-40) cm(6).s(-1)) compared with the I-4(11/2) level (similar to 3.1 x 10(-10) cm(6).s(-1)). Therefore, the major energy transfer mechanism associated with the I-4(13/2), level was migration induced, whereas that for the I-4(11/2) level was direct cross relaxation of I-4(11/2):I-4(11/2) --> F-4(7/2):I-4(15/2).
- Keywords
- METAL OXIDE GLASSES; CROSS-SECTION MEASUREMENTS; UP-CONVERSION; FLUORESCENCE DYNAMICS; WAVE-GUIDES; IONS; ER3+; TM3+; MECHANISMS; SPECTRA
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/20088
- DOI
- 10.1111/j.1151-2916.1999.tb02153.x
- ISSN
- 0002-7820
- Article Type
- Article
- Citation
- JOURNAL OF THE AMERICAN CERAMIC SOCIETY, vol. 82, no. 10, page. 2762 - 2768, 1999-10
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- There are no files associated with this item.
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