title: Optical properties of Sm3+ ions doped in tellurite glass.
abstract: Judd-Ofelt analysis of Sm(3+) ions doped in a tellurite glass has been accomplished. Fluorescence and life-time measurements have been carried out using Ar(+) laser and excimer laser. Stark splitting has been observed in the upper and lower levels in fluorescence. The life-time of 4G(5/2) level as a function of Sm(3+) concentration has been measured. Concentration quenching and the mechanism responsible for the same have been found.
authors.affiliation: Laser and Spectroscopy Laboratory, Department of Physics, Banaras Hindu University, Varanasi 221 005, India.
authors.forename: Akshaya
authors.initials: A
authors.lastname: Kumar
authors.forename: D K
authors.initials: DK
authors.lastname: Rai
authors.forename: S B
authors.initials: SB
authors.lastname: Rai
mesh_terms: D012493:Samarium / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013053:Spectrophotometry; D013691:Tellurium / Q000737:chemistry*
chemical_list: D012493:Samarium; C026660:tellurous acid; D013691:Tellurium