Experimental and theoretical spectroscopic study of erbium doped aluminosilicate glasses

Experimental and theoretical spectroscopic study of erbium doped aluminosilicate glasses This paper reports on the Judd–Ofelt analysis of 2×1020ions/cm3 Er3+-doped aluminosilicate glasses. Mainly BaO, MgO and CaO have been used as network modifier oxides. The five studied compositions were prepared by using the conventional melt-quenching method. From the UV–vis–NIR absorption spectra, the Judd–Ofelt parameters, Ωk (k=2, 4, 6) of Er3+ were evaluated and discussed in detail. From the systematic variations of the Ω2 parameter, structural changes in the glasses are deduced: higher barium concentrations result in an increasing symmetry at the Er3+-sites. This finding also correlates with higher calculated fluorescence lifetime values. Ω6 is related to the optical basicity of the glass composition, while Ω4 seems to represent a mixture of Ω2 and Ω6. This finding is strengthened by comparison with data of previous publications.The radiative transition probabilities A, radiative lifetimes τrad and fluorescence branching ratios β were calculated. The calcium aluminosilicate glass shows the highest Er3+ absorption cross sections. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Luminescence Elsevier

Experimental and theoretical spectroscopic study of erbium doped aluminosilicate glasses

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier B.V.
ISSN
0022-2313
eISSN
1872-7883
D.O.I.
10.1016/j.jlumin.2016.02.022
Publisher site
See Article on Publisher Site

Abstract

This paper reports on the Judd–Ofelt analysis of 2×1020ions/cm3 Er3+-doped aluminosilicate glasses. Mainly BaO, MgO and CaO have been used as network modifier oxides. The five studied compositions were prepared by using the conventional melt-quenching method. From the UV–vis–NIR absorption spectra, the Judd–Ofelt parameters, Ωk (k=2, 4, 6) of Er3+ were evaluated and discussed in detail. From the systematic variations of the Ω2 parameter, structural changes in the glasses are deduced: higher barium concentrations result in an increasing symmetry at the Er3+-sites. This finding also correlates with higher calculated fluorescence lifetime values. Ω6 is related to the optical basicity of the glass composition, while Ω4 seems to represent a mixture of Ω2 and Ω6. This finding is strengthened by comparison with data of previous publications.The radiative transition probabilities A, radiative lifetimes τrad and fluorescence branching ratios β were calculated. The calcium aluminosilicate glass shows the highest Er3+ absorption cross sections.

Journal

Journal of LuminescenceElsevier

Published: Aug 1, 2016

References

  • Laser Phys. Lett.
    Tiegel, M.; Herrmann, A.; Kuhn, S.; Rüssel, C.; Körner, J.; Klöpfel, D.; Seifert, R.; Hein, J.; Kaluza, M.C.

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