title: Communication: excitation band modulation with high-order photonic band gap in PMMA:Eu(TTA)3(TPPO)2 opals.
abstract: Changes in the excitation spectra of luminescent species inserted in photorefractive crystals as a function of changes in the high-order photonic band gap (PBG) have not been previously observed. In this communication, we present our results monitoring the excitation band of Eu(TTA)3(TPPO)2 inserted in the PMMA opal photonic crystals as a function of the changes in the high-order PBG of the crystals. We find shifts in the complex excitation band and changes in the integrated emission intensity that correlates with shifts in the high-order PBG through coupling to the excitation transition.
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
authors.forename: Wen
authors.initials: W
authors.lastname: Xu
authors.forename: Xue
authors.initials: X
authors.lastname: Bai
authors.forename: Yongsheng
authors.initials: Y
authors.lastname: Zhu
authors.forename: Tong
authors.initials: T
authors.lastname: Liu
authors.forename: Sai
authors.initials: S
authors.lastname: Xu
authors.forename: Biao
authors.initials: B
authors.lastname: Dong
authors.forename: Hongwei
authors.initials: H
authors.lastname: Song
mesh_terms: D005063:Europium / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D009943:Organophosphorus Compounds / Q000737:chemistry*; D017785:Photons; D019904:Polymethyl Methacrylate / Q000737:chemistry*; D013804:Thenoyltrifluoroacetone / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D009943:Organophosphorus Compounds; D013804:Thenoyltrifluoroacetone; D005063:Europium; D019904:Polymethyl Methacrylate; C063888:triphenylphosphine oxide