title: Luminescence and spectral hole burning of Sm(2+) doped in Li(2)O-SrO-B(2)O(3) glass-ceramics.
abstract: The Sm(3+)-doped alkali strontium borate glass-ceramics were obtained by heating of the as-made glasses in air, where Sm(3+) ions were reduced to Sm(2+) ions. The XRD, optical absorption spectra and luminescence of Sm(3+) and Sm(2+) ions were investigated. The excitation spectra of the (7)F(0)-->(5)D(0) transition were measured in the region of (7)F(0)-->(5)D(1) transition, where spectral holes were burnt within two of the Stark split (5)D(1) bands. The Sm(2+) ions doped glass ceramics exhibit the persistent spectral hole burning at room temperature. The hole depth, which are burned by the DCM dye laser, are about 40% of the total intensity, respectively. It is concluded that the dominant burning mechanism is a photoionization of electron trapping at a site other than Sm(3+) ions because of the absence of an antihole around the burned hole.
authors.affiliation: College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
authors.forename: Chuanfang
authors.initials: C
authors.lastname: Jiang
authors.forename: Yanlin
authors.initials: Y
authors.lastname: Huang
authors.forename: Seongtae
authors.initials: S
authors.lastname: Park
authors.forename: Kiwan
authors.initials: K
authors.lastname: Jang
authors.forename: Hyo Jin
authors.initials: HJ
authors.lastname: Seo
mesh_terms: D001881:Borates / Q000737:chemistry*; D002516:Ceramics / Q000737:chemistry*; D007834:Lasers; D018020:Lithium Compounds / Q000737:chemistry*; D049449:Luminescence; D008422:Materials Testing; D012493:Samarium / Q000737:chemistry*; D013324:Strontium / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D001881:Borates; D018020:Lithium Compounds; D012493:Samarium; C023506:Glass ceramics; D013324:Strontium