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Optical Properties of Nd3+ in Nd(DBM)3Phen-doped Poly(methyl methacrylate)
Zhi-qiang Zheng*1, Hao Liang2, Hai Ming3, Qi-jin Zhang2, Jian-ping Xie3
1.Department of Physics, Fujian Normal University, Fuzhou 350007, China;2.Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China;3.Department of Physics, University of Science and Technology of China, Hefei 230026, China
Abstract:
Nd(DBM)3Phen-doped (DBM is dibenzoylmethane and Phen is phenanthroline) polymethyl methacrylate (PMMA) is prepared. Optical absorption, excitation and emission spectra were analyzed for Nd3+ in Nd(DBM)3Phen-doped PMMA. Using the Judd-Ofelt theory, the absorption spectrum was analyzed. The Judd-Ofelt(J-O) intensity parameters of Nd(DBM)3Phen-doped polymethyl methacrylate were calculated to be Ω2 = 20.97 × 10-20 cm2, Ω4 = 3.42 × 10-20 cm2, Ω6 = 2.90 × 10-20 cm2. The radiative lifetime (631 μs)of the excited 4F3/2 level is given. The stimulated emission cross-sections and the fluorescence branch ratios for the 4F3/2 →4 IJ/ transitions are also evaluated. Analysis reveals that Nd(DBM)3Phen-doped PMMA is promising for application in polymer optical fibers and planar waveguides.
Key words:  Radiative properties, Judd-Ofelt analysis, Nd(DBM)3Phen, Polymer
FundProject:
掺钕聚甲基丙烯酸甲酯的光学特性
郑志强*1, 梁浩2, 明海3, 张其锦2, 谢建平1
1.福建师范大学物理系,福州,350007;2.中国科技大学高分子科学与工程系,合肥,230026;3.中国科技大学物理系,合肥,230026
摘要:
研究了制备的掺钕螯合物Nd(DBM)3Phen材料的吸收光谱、激发光谱、荧光光谱,应用Judd-Ofelt理论计算了该材料的强度参量.分析了钕离子激发态4F3=2的辐射寿命(631 1s)和4F3=2?!4IJ0 跃迁的受激发射截面和荧光分支比.
关键词:  辐射特性,Judd-Ofelt分析,Nd(DBM)3Phen,聚合物
DOI:10.1360/cjcp2006.19(3).273.4
分类号: