Red-to-green up-conversion in Er-doped SiO2 and SiO2 -TiO2 sol-gel silicate glasses

Journal Article

Monolithic Er-doped SiO2-TiO2 binary glasses of high optical quality were used in an investigation of the effects of different annealing conditions and titanium content on fluorescence yields and decay times of the 4S3/2 level of Er3+. In addition, the characteristics of green upconverted fluorescence from the 4S3/2 level via excitation with red laser light (655 nm) were studied. Energy transfer up-conversion involving two ions in the 4I11/2 state was determined to be the dominant up-conversion mechanism. The glasses with TiO2 showed enhanced up-conversion and required lower annealing temperatures for the up-conversion to be observed when compared to SiO2 glasses doped with Al. © 2001 Elsevier Science B.V. All rights reserved.

Full Text

Duke Authors

Cited Authors

  • Boye, DM; Silversmith, AJ; Nolen, J; Rumney, L; Shaye, D; Smith, BC; Brewer, KS

Published Date

  • 2001

Published In

Volume / Issue

  • 94-95 /

Start / End Page

  • 279 - 282

International Standard Serial Number (ISSN)

  • 0022-2313

Digital Object Identifier (DOI)

  • 10.1016/S0022-2313(01)00301-5