Paper Title:
Composition-Dependent Ultraviolet up-Conversion Luminescence in Yb3+-Ho3+ Co-Doped Germanium- Phosphate Glasses
  Abstract

Yb3+-Ho3+ co-doped germanium-phosphate glasses have been prepared and characterized for its optical properties through measuring photoluminescence and Raman spectra. UV-visible up-conversion emission of holmium ion in Yb3+-Ho3+ co-doped germanium-phosphate glasses has been observed on 980nm excitation. As phosphate was substituted for germanium the red emission Red I decreased at first and then increased later while the green emission Green I decreased and the ratio of Red I to Green I increased. Interestingly, the value of ultraviolet emission intensity was larger than that of the blue and green emission intensity in phosphate glass sample. We believe that Yb3+-Ho3+ co-doped germanium-phosphate glasses might be a potential host material for developing ultraviolet all–solid compact lasers. The possible excitation mechanisms involved in these emissions were discussed, too.

  Info
Periodical
Edited by
Deliang Chen
Pages
5-8
DOI
10.4028/www.scientific.net/AMR.266.5
Citation
Y. M. Yang, W. Zhang, S. Du, Z. P. Yang, "Composition-Dependent Ultraviolet up-Conversion Luminescence in Yb3+-Ho3+ Co-Doped Germanium- Phosphate Glasses", Advanced Materials Research, Vol. 266, pp. 5-8, 2011
Online since
June 2011
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