title: [Spectroscopic characterization of Tm3+ ions in zinc tungstate crystals].
abstract: A series of high quality ZnWO4:Tm3+ single crystals were grown with Czochralski method. The concentrations of thulium ions were 0.1, 0.3, 0.5, 0.7 and 1.0 mol%, respectively. When ZnWO4:Tm3+ single crystals were excited by 807 nm laser, the up-conversion luminescence peaks at 486 and 695 nm which corresponded to transitions 1G4-->3H6 and 3F3-->3 H6, respectively, were detected. The intensity of 695 nm luminescence varied with the pump power in a double logarithmic relation whose indexes were 0.8 and 1.1 orders, respectively.
authors.affiliation: College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China.
authors.forename: Jing-cun
authors.initials: JC
authors.lastname: Zang
authors.forename: Yu-long
authors.initials: YL
authors.lastname: Liu
authors.forename: Dong-yong
authors.initials: DY
authors.lastname: Xu
authors.forename: Feng
authors.initials: F
authors.lastname: Gong
authors.forename: Bing-rui
authors.initials: BR
authors.lastname: Shan
mesh_terms: D003460:Crystallization; D007477:Ions; D007834:Lasers; D008029:Lighting; D049449:Luminescence; D049329:Nanostructures; D010087:Oxides / Q000737:chemistry*; D010777:Photochemistry; D013057:Spectrum Analysis; D013059:Spectrum Analysis, Raman; D013691:Tellurium / Q000737:chemistry; D013696:Temperature; D013932:Thulium / Q000737:chemistry*; D014414:Tungsten / Q000737:chemistry*; D014961:X-Ray Diffraction; D015018:Ytterbium / Q000737:chemistry; D015032:Zinc / Q000737:chemistry
chemical_list: D007477:Ions; D010087:Oxides; D013932:Thulium; C511604:tungsten oxide; D015032:Zinc; D015018:Ytterbium; D013691:Tellurium; D014414:Tungsten