Compositional dependence of the optical properties of bismuth doped lead-aluminum-germanate glass

Hughes, MA ORCID:, Suzuki, T and Ohishi, Y 2010, 'Compositional dependence of the optical properties of bismuth doped lead-aluminum-germanate glass' , Optical Materials, 32 (9) , pp. 1028-1034.

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We report the compositional dependence of absorption, emission, decay constant and quantum efficiency (QE) of GeO2:Al2O3:PbO:Bi2O3 glass with the aim of finding the composition most suitable for a laser gain medium. As the Bi2O3 content was varied we observed a non-monotonic variation in absorption spectrum. The optimized composition was 87.4GeO2:6Al2O3:6PbO:0.6Bi2O3 (% molar) which had a QE of 67% but low transparency. We report the dependence of QE and decay constant on melting conditions of this glass. Adding 10% ZnO improved the transparency, therefore the optimized and transparent composition was 74.4GeO2:10ZnO:6Al2O3:6PbO:0.6Bi2O3, which had an emission full width at half maximum of 500 nm.

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering
Journal or Publication Title: Optical Materials
Publisher: Elsevier
ISSN: 1028–1034
Related URLs:
Funders: MEXT
Depositing User: Dr Mark Hughes
Date Deposited: 10 Nov 2015 09:37
Last Modified: 16 Feb 2022 17:18

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