title: [Optical parameters of Tm3+ in oxyfluoride glass ceramic].
abstract: Optical-absorption spectrum of Tm3+ ions in oxyfluoride glass ceramic was measured, from which the measured oscillator strengths were obtained. The Judd-Ofelt intensity parameters omega t (t = 2, 4, 6) were determined by a best fit of the calculated and measured oscillator strengths, the rms deviation was 3.9 x 10(-7). Some predicted spectroscopic parameters of the excited states, like the spontaneous radiative transition rate, radiative lifetime, branching ratio and integrated emission cross section were given using the intensity parameters. The spectroscopic parameters were comparable with some laser materials, and some of them were better.
authors.affiliation: Analytical and Testing Center, Beijing Normal University, 100875 Beijing.
authors.forename: C
authors.initials: C
authors.lastname: He
authors.forename: X
authors.initials: X
authors.lastname: Chen
authors.forename: N
authors.initials: N
authors.lastname: Sawanobori
authors.forename: Y
authors.initials: Y
authors.lastname: Sun
authors.forename: L
authors.initials: L
authors.lastname: Chen
authors.forename: C
authors.initials: C
authors.lastname: Meng
mesh_terms: D002516:Ceramics / Q000737:chemistry*; D003460:Crystallization; D005461:Fluorine / Q000737:chemistry*; D007834:Lasers; D010087:Oxides / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013932:Thulium / Q000737:chemistry*
chemical_list: D010087:Oxides; D005461:Fluorine; C014559:fluorine monoxide; C023506:Glass ceramics; D013932:Thulium