title: [Study on the theory and experiments of radiative parameters of the Eu(3+) ion in transparent optical resin].
abstract: The optical properties of a transparent optical resin (HMA/ST) containing ternary rare earth complex are reported. Based on Judd-Ofelt (J-O) theory, the J-O parameters were calculated to be omega2 = 10.139 4 x 10(-20) cm2, omega4 = 3.810 9 x 10(-20) cm2, omega6 = 9.050 7 x 10(-20) cm2 by using the emission spectrum of optical resin containing Eu (TTA)3 phen-0.31 wt%. The J-O parameters were used to calculate the total radiative transition rate (456.6 s(-1)) and radiative lifetime (2 190.1 micros) of the excited state 5D0. The stimulated emission cross-sections a and the fluorescence branch ratio beta parameters for the transitions of 5D0 --> 7F(J), (where J' = 1, 2, 4 and 6) were also evaluated. By analyzing the calculated J-O parameters, it is concluded that the excited state of Eu3+ in optical resin has a long radiative lifetime and large emission cross-section, which shows that the optical resin containing rare earth complex can be used for stimulated emission amplification or as a laser material.
authors.affiliation: Department of Physics, Jilin University, Changchun 130023, China.
authors.forename: Fu-Xiang
authors.initials: FX
authors.lastname: Wang
authors.forename: Song-Hao
authors.initials: SH
authors.lastname: Pei
authors.forename: Wei-Xian
authors.initials: WX
authors.lastname: Peng
authors.forename: Dong-Mei
authors.initials: DM
authors.lastname: Wang
authors.forename: Bai
authors.initials: B
authors.lastname: Yang
authors.forename: Feng-Min
authors.initials: FM
authors.lastname: Wang
authors.forename: Xin-Guo
authors.initials: XG
authors.lastname: Li