The blue up-conversion emission of glass ceramics doped with Er3+ ion upon green line (19436 cm−1) excitation

✍ Scribed by W. Xu; G. Chen; J.R. Peterson

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 387 KB
• Volume: 224
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(94)00531-1

✦ Synopsis

Some spectroscopic properties of PbFa+ GeOz : ErFs glass ceramics under green line ( 19436 cm-' ) excitation were investigated at room temperature. Both absorption and emission spectra have been measured. The up-conversion of green radiation into violet (26455 cm-') and blue (24582 cm-') emission from Er3+ ion was observed in the compounds. The up-conversion process involves a two-photon absorption for these violet and blue emission bands. A fluorescence efftciency of 3.34 x 1 Ob4 has been estimated for the blue up-conversion emission at room temperature from the sample doped with 1.8 mol% ErF,.