title: Optical properties of Er(3+)-doped oxyfluoride glasses.
abstract: Er(3+)-singly doped and Er(3+)/Yb(3+)-codoped 50SiO2-(50-x)BaF2-xZnF2(SBZx) oxyfluoride glasses are prepared and the optical properties of Er(3+)-singly doped glasses are investigated by using the Judd-Ofelt theory. Bright green and red upconversion luminescence of Er(3+)/Yb(3+)-codoped glasses is obtained under 980nm excitation. Furthermore, factors affecting this phenomenon such as glass composition, doping concentration of Er(3+) and Yb(3+) ions, and pump power are discussed in details.
authors.affiliation: Institute of Materials Science and Engineering, Shijiazhuang University of Economics, Shijiazhuang 050031, PR China. Electronic address: fengli5435@hotmail.com.
authors.forename: Li
authors.initials: L
authors.lastname: Feng
authors.affiliation: College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050016, PR China.
authors.forename: Yinsu
authors.initials: Y
authors.lastname: Wu
keywords: Judd–Ofelt; Optical properties; Oxyfluoride glass; Upconversion