title: Optical properties of Dy3+ doped in oxyfluoroborate glass.
abstract: Optical absorption, fluorescence and photoacoustic spectra of Dy3+ doped in oxyfluoroborate glass has been studied. Lifetime of 4F(9/2) level has been measured for different concentration of Dy3+. Effect of concentration quenching on the lifetime and the fluorescence yield has been observed and the mechanism of energy transfer discussed. The energy transfer from Pr3+ to Dy3+ has been observed and explained in a codoped glass containing Pr3+ + Dy3+.
authors.affiliation: Department of Physics, Banaras Hindu University, Varanasi 221005, India.
authors.forename: K K
authors.initials: KK
authors.lastname: Mahato
authors.forename: Anita
authors.initials: A
authors.lastname: Rai
authors.forename: S B
authors.initials: SB
authors.lastname: Rai
mesh_terms: D004419:Dysprosium / Q000737:chemistry*; D004735:Energy Transfer; D005453:Fluorescence; D005898:Glass / Q000737:chemistry*; D007834:Lasers; D013050:Spectrometry, Fluorescence; D013053:Spectrophotometry
chemical_list: D004419:Dysprosium