Chinese Optics Letters, 2005, 3 (10): 10605, Published Online: Jun. 6, 2006
Clustering study in Eu(DBM)3Phen-doped polymer optical fibers by optical properties and near-field scanning microscopy
180.5810 scanning microscopy 300.6280 spectroscopy fluorescence and luminescence 250.5460 polymer waveguides-fibers 160.5690 rare earth doped materials
Abstract
The clusters of Eu^(3+) ion in Eu(DBM)3Phen-doped polymethyl methacrylate (PMMA) have been studied by three means. The relative fluorescence intensity ratio of the 5D0 -> 7F2 to 5D0 -> 7F1 transitions with different concentrations of Eu^(3+) in Eu(DBM)3Phen-doped PMMA and metastable-state (5D0) lifetime dependence on Eu^(3+) concentration are analyzed. The analysis indicates that there are no clustering effects in Eu^(3+) ions of Eu(DBM)3Phen-doped PMMA when the Eu^(3+) doping concentration is up to 1.0 wt.-%. At the same time, the clustering effect has not been observed by the scanning near-field optical microscopy (SNOM) in Eu(DBM)3Phen-doped PMMA with 1.0 wt.-% of Eu^(3+) ions. The analysis reveals that a high concentration of Eu^(3+) can be incorporated into polymer optical fiber (POF) without clustering effect.
Zhiqiang Zheng, Hai Ming, Xiaohong Sun, Jianping Xie. Clustering study in Eu(DBM)3Phen-doped polymer optical fibers by optical properties and near-field scanning microscopy[J]. Chinese Optics Letters, 2005, 3(10): 10605.
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